Some notes on how this web-document was created:
A photocopy of the original document was FAXed to a FAX/MODEM and was stored in a computer. The stored FAX images were "read" with the OCR engine of WINFAX. The resulting text file was then edited in WORD for Windows95 in order to correct mistakes made by the OCR and to return the original text formatting. The HTML document was then produced with Microsoft Assistant. This was a less than idea solution as different web-browsers will give the document a different appearance. Some will show underlining and some will not. However, this approach did maintain the original page and line structure of the original document. If the word wrap looks strange on your browser, try making the browser window wider. The lines are of fixed length and should not be forced to wrap.
Care was taken to make the following document as close to the
original document as possible. HOWEVER THERE MAY BE TRANSLATION
ERRORS. This document is placed here for educational purposes
only.
If you need an exact copy of the original for legal purposes, please contact:
Charles R. Honts, Ph. D., Dept. of Psychology, Boise State University, 1910 University Drive, Boise, Idaho, 83725 USA; 208.385.3695
or
The law firm of:
Garrett & Gilliard, P.C.
Suntrust Bank Building
801 Broad Street, Suite 1001
Augusta, GA, 30901 USA: 706.724.1896
Related Web Pages:
Homepage of Dr. Charles R. Honts
The Journal of Credibilty Assessment and Witness Psychology
This was the first polygraph related page posted at this site.

UNITED STATES OF AMERICA,
Plaintiff,
v.
FRED EMERSON GILLIARD,
Defendant.
Case No. CRI9E-19
¶The government has moved for a pretrial ruling precluding
the
introduction of certain polygraph evidence which the defendant
intends to offer at the trial of this case. The Court conducted
a
lengthy evidentiary hearing to consider this issue, receiving
testimony from four expert witnesses in the field of polygraphy.
The Court has received and considered the parties' post-hearing
submissions, including the brief and videotape submitted by
the
defendant and the lengthy government brief (that substantially
exceeds the page limits of Local Rule 7.1, which prohibits
the
filing of any brief or legal memorandum in excess 25 pages
absent
the prior written permission of the Court).1
__________________________
1 The briefs addressing the admissibility of the polygraph
evidence now total over 100 pages. Although the government's 42-
page post-hearing brief was submitted without prior approval. given
the difficulty, novelty, and significance of the issues addressed
in that brief, the Court will excuse the government's noncompliance
with the local rule in this instance.
I. BACKGROUND
¶On March 8, 1998, the government secured an indictment
charging the defendant with some 100 counts of submitting,
or
causing to be submitted, numerous claims to Medicare and Medicaid
seeking reimbursement for medical services which the defendant
knew
to be false and fraudulent, one count of obstruction of justice,
and one count of false declarations before the grand jury.
According to the indictment, Gilliard served as an officer
of Penn-
Teck, a company that furnished various diagnostic services
to
physicians. He is alleged to have devised a scheme which involved
the manipulation of the company's computerized billing system
to
include procedures that Penn-Tack technicians had never performed.
As a result, Penn-Tack was overcompensated by Medicare, and
Gilliard, whose compensation was tied to the overall profits
made
by the company, directly benefitted from the excessive billings.
Gilliard is further alleged to have attempted to corruptly
influence the testimony of a witness before the grand jury
and to
have lied in his own grand jury testimony.
¶Long before the return of the indictment in this case,
the
defendant learned that he was a target of a government
investigation of suspected Medicare fraud in connection with
his
employment at Penn-Tack. With the advice of counsel, the defendant
arranged to take a polygraph examination concerning his conduct
at
Penn-Teck in the hope that his performance on the exam might
persuade the government to forego a criminal prosecution and
pursue
exclusively civil remedies. That exam was performed by Captain
William E. Johnson of the Richmond County Sheriff's Department
on
August 12, 1995. Defendant's counsel informed the government
of
the results of this polygraph test on October 5, 1995, and
submitted the polygraph documents for the government's review.
An
EBY polygraph examiner reviewed those documents and later
interpreted the results as "inconclusive."
¶Anticipating that the defendant would endeavor to introduce
the results of the polygraph examination at trial, the government
filed its motion to exclude such evidence on April 11, 1998,
arguing, inter alia, that the questions which were posed during
the
exam were not relevant to the issues in the case.
¶After receiving the government's motion, the defendant
elected
to undergo a second polygraph examination on June 24, 1998.
On
this occasion the test was administered by Charles R. Honts,
Ph.D.,
an associate professor of psychology at Boise State University
and
a renowned expert in the field of polygraphy. The defendant
then
gave notice to the government that the results of that polygraph
examination (which were tailored to the precise allegations
of the
indictment) were also favorable to the defendant and would
be
offered as evidence at the trial of this case. The government
has
made very clear that it opposes the introduction of the Honts'
polygraph, although it-does so for reasons quite different
from
those which gave rise to its objection to the Johnson polygraph.
¶Not long ago, the admissibility of these polygraph
examinations would have been an easy issue to decide, for
this
circuit adhered to a well-established rule that the results
of
polygraph examinations (except as stipulated to by the parties)
were per se inadmissible in federal trials. The per se rule
of
exclusion has been firmly rejected in this circuit by United
States
v. Piccinonna,
885 F.2d 1529 (11th Cir. 1989) (en
banc), a landmark
decision that has influenced a number of other federal courts
to
either reject or reconsider their own blanket rules for the
exclusion of all contested polygraph evidence. It is this
Court's
task, therefore, to determine whether the polygraph evidence
sought
to be admitted in this case qualifies as "scientific
. .
knowledge" which "will assist the trier of fact
to understand the
evidence or determine a fact in issue." Fed. R. Evid.
702. Even
if the polygraph evidence qualifies as relevant scientific
knowledge which may properly be the subject of expert testimony,
the Court must further determine whether that evidence should
nevertheless be excluded because its probative value is
substantially outweighed by the danger of unfair prejudice.
Fed.
R. Evid. 403. And, as will be seen, the government has raised
a
number of additional challenges to the admissibility of this
evidence which will require the Court's careful attention.
II. SCIENTIFIC EVIDENCE:
GENERAL PRINCIPLES
¶For some seventy years, the admission of scientific
evidence
in federal trials was governed by the standard first announced
in
Frye v. United States,
293 F. 1013 (D.C. App. 1923) , a decision
which addressed the admissibility of evidence derived from
a
primitive prototype of the polygraph device (which relied
exclusively on measurements of the subject's systolic blood
pressure during questioning). The Frye
court reasoned that a
scientific technique is admissible only if that technique
has
gained "general acceptance" as reliable in the relevant
scientific
community. Id.
at 1014. Because the polygraph test at issue in
that case had "not yet gained such standing and scientific
recognition among physiological and psychological authorities,"
the
court concluded that the evidence was inadmissible. Id.
¶The adoption of the Federal Rules of Evidence in 1974
significantly liberalized evidence law by favoring "the
admission
of evidence-rather than its exclusion if it has any probative
value
at all." Young v.
Illinois Cent. Gulf R. R. Co., 818 F.2d 332, 337
(5th Cir. 1980); see Fed. R. Evid. 401, 402. Those rules contain
a specific provision addressing the admissibility of expert
testimony about scientific matters:
If scientific, technical, or other specialized
knowledge will assist the trier of fact to
understand the evidence or to determine a fact in
issue, a witness qualified as an expert by
knowledge, skill, experience, training, or
education, may testify thereto in the form of an
opinion or otherwise.
Fed. R. Evid. 702. Although the federal rules contain no reference
to the "general acceptance" standard announced in
Frve, a majority
of the federal circuits continued to adhere to the traditional
Era
standard. James P. McCall, Misconceptions
and Reevaluation --
Polygraph Admissibility
after Rock and Daubert,
1996 U. Ill. L.
Rev. 363, 375 n.71 (1996).
¶The standard for admitting expert scientific testimony
in
federal trials was completely rewritten in 1993, when the
Supreme
Court issued its opinion in Daubert
v. Merrell Dow Pharmaceuticals.
Inc., 113 S.Ct. 2786 (1993). Daubert
held that the Frye
"general
acceptance" test did not survive the adoption of the
Federal Rules
of Evidence, whose "liberal thrust" is simply inconsistent
with
Frye's "austere
standard" for admitting scientific evidence. Id.
at 2794. However, in adopting a more relaxed standard for
the
admission of novel scientific evidence, Daubert
requires federal
judges to exercise a "gatekeeping role" that involves
a far more
complex analysis than the earlier Frye
approach to such evidence.
¶The Daubert
court determined that the general acceptance
standard had been displaced by Rule 702, which imposes a two-part
test for the admissibility of scientific evidence. First,
the
court must decide whether the subject of the expert's testimony
is
truly "`scientific . . . knowledge.'" Id.
at 2795 (quoting Fed. R.
Evid. 702). This requires an exploration of the theoretical
underpinnings of the proffered evidence to ensure that it
is
grounded in the methods and procedures of science and constitutes
more than mere unsupported speculation. Only evidence that
is
"derived by the scientific method" possesses sufficient
evidentiary
reliability be admissible under Rule 702. Second, the court
must
determine whether the expert testimony "will assist the
trier of
fact to understand the evidence or to determine a fact in
issue."
Fed. R. Evid. 702. This "helpfulness" inquiry is
essentially a
question of relevancy, requiring a sufficient "fit"
between the
expert's testimony and an issue that is actually in dispute.
Id.
at 2796. Thus, in order to admit novel scientific evidence,
the
courts must make a preliminary assessment under Federal Rule
of
Evidence 104 (a) "of whether the reasoning or methodology
underlying
the testimony is scientifically valid and of whether that
reasoning
or methodology properly can be applied to the facts in issue."
Id.
at 2796.
¶The Supreme Court offered some non-exclusive factors
to be
considered by the lower courts in assessing the evidentiary
reliability of novel scientific evidence: (1) whether the
theory or
technique can be, and has been, tested, (2) whether the theory
or
technique has been subjected to peer review and publication,
(3)
the technique's known or potential rate of error, (4) the
existence
of standards controlling the technique's application, and
(5) the
general acceptance of the theory within the scientific community.
Id. at 2796-97.
The Court emphasized that this is necessarily a
"flexible" inquiry the focus of which "must
be solely on principles
and methodology, not on the conclusions that they generate."
Id.
at 2797.
¶Although the Supreme Court expressed its confidence
"that
federal judges possess the capacity to undertake this review,"
it
is with same degree of trepidation that this Court embarks
upon a
reliability assessment of novel scientific evidence, particularly
where that evidence has generated some heat within both the
scientific and legal communities. "Mindful of our position
in the
hierarchy of the federal judiciary, we take a deep breath
and
proceed with this heady task." Daubert
v. Merrell Dow
Pharmaceuticals. Inc.,
43 F.3d 1311, 1316 (9th Cir. 1995) (on remand
from the Supreme Court). But before doing so, it may be
instructive to briefly survey the federal courts' treatment
of
polygraphy evidence both before and after Daubert.
III. POLYGRAPHY'S RECEPTION
IN THE FEDERAL COURTS
¶For many years following the Frye
decision, the courts
remained hostile to any attempts to introduce polygraph evidence
in
trial proceedings, despite the fact that significant strides
were
made as to both the theory and practice of polygraphy.
Misconceptions and Reevaluation
-- Polygraph Admissibility after
Rock and Daubert,
1966 U. Ill. L. Rev. at 368. A number of courts,
however, began to permit polygraph evidence upon the stipulation
of
the parties, Id.
at 371-72 & n.51 (noting that the Georgia courts
followed this practice), and polygraphy came into wide use
within
private industry and the government, particularly law enforcement.
Id. at 379.
The passage of the Federal Rules of Evidence did not
significantly change the federal courts' attitude toward polygraph
evidence; instead, the federal courts continued to adhere
to the
notion that the polygraph had not gained "general acceptance"
within the scientific community. The Eleventh Circuit was
the
first federal court to break with this traditional view.
¶In United States
v. Piccinonna, 885 F.2d 1529 (11th Cir.
1989), the Eleventh Circuit rejected its per se rule of exclusion
of polygraph evidence and became the first court in the federal
system to hold that, in certain circumstances, such evidence
may be
admitted absent a stipulation of the parties. The defendant
in
that case, who was charged with false statements to the federal
grand jury, arranged for his own polygraph examination after
the
government refused to stipulate to the admissibility of such
evidence. Id.
at 1530. Following a hearing, the trial judge
precluded the use of the evidence but suggested that the Eleventh
Circuit reconsider its per se rule. "Because of the significant
progress made in the field of polygraph testing over the past
forty
years and its increasingly widespread use," the Eleventh
Circuit,
sitting en banc,
agreed to reexamine its per se rule of exclusion.
Id. at 1530.
¶The court's decision, rendered prior to Daubert,
proceeded
under the traditional Frye
analysis that required the "general
acceptance" of scientific evidence as a condition to
its
admissibility. Although Frye
had stood as a complete bar to
polygraph evidence for some fifty years, the court noted that
"tremendous advances have been made in polygraph instrumentation
and technique" and that "polygraph tests are used
extensively by
government agencies." Id.
at 1532. The court reasoned that a per
se rule of exclusion was no longer supportable "even
under a strict
adherence to the traditional Frye
standard." Id.
at 1532.
The Piccinonna
court considered but found unpersuasive the
traditional concerns that the polygraph test is unreliable,
lacks
sufficient standardization, and would have an undue impact
upon the
jury. In view of the increasingly widespread acceptance of
the
polygraph as a useful and reliable scientific tool, the court
found
that its per se rule disallowing polygraph evidence was no
longer
supportable. Balancing the need for relevant and reliable
polygraph evidence against the danger of unfair prejudice,
the
court articulated two instances where polygraph evidence will
be
admissible: (1) where both parties stipulate in advance as
to the
nature of the test and the scope of its admissibility, and
(2)
where the polygraph evidence is used to impeach or corroborate
the
testimony of a witness at trial. Id.
at 1535-36. When used for
the latter purpose, polygraph evidence will be admitted only
if the
party offering the evidence gave adequate notice of his intention
to do so, the opposing party has a reasonable opportunity
to
administer his own test, and the evidence otherwise satisfies
the
Federal Rules of Evidence. Id.
at 1536. The court emphasized that
the trial judge retains wide discretion in this area and was
free
to exclude polygraph testimony if the examiner's qualifications
were unacceptable, the test procedure was unfairly prejudicial
or
the test was poorly administered, or the questions were irrelevant
or improper. Id.
at 1537.
¶Although recognizing that "the reliability of polygraph
testing remains a subject of intense scholarly debate,"
Piccinonna
concluded that "the science of polygraphy has progressed
to a level
of acceptance sufficient to allow the use of polygraph evidence
in
limited circumstances where the danger of unfair prejudice
is
minimized." Id..
at 1537. The court further noted that its holding
was not expected to be "the final word within our circuit
on this
increasingly important issue." Id..
¶The Frye
standard was repudiated by the Supreme Court four
years after Piccinonna
was decided. Since Piccinonna's
holding
rests upon a standard that is incompatible with the Federal
Rules
of Evidence, the decision must be reinterpreted in the light
of
Daubert. Although
the Piccinonna court
referred to Rule 702 in its
decision, it assumed that the traditional "general acceptance"
standard was incorporated by that rule. United
States v.
Piccinonna,
885 F.2d at 1531. Daubert
has squarely refuted that
assumption, and any further assessment of the admissibility
of
polygraph evidence in this circuit must rest upon the specific
analysis approved by Daubert,
not the approach utilized in
Piccinonna.
That is nor to say that the Piccinonna
decision is no
longer useful, for many of the factors that the court found
persuasive in its consideration of polygraph evidence also
apply
under the Daubert
analysis. Nevertheless, it is essential to take
a fresh look at polygraph evidence in light of Daubert.
¶Some two years after Daubert
was decided, a number of federal
courts reconsidered the admissibility of polygraph evidence
using
the standard articulated by the Supreme Court. In United
States v.
Posado, 57 F.3d
428 (5th Cir. 1995), the Fifth Circuit addressed
the admissibility of polygraph evidence offered by the defendants
in a pretrial suppression hearing. Ignoring the defendants'
request for a Daubert
hearing, the district court adhered to
longstanding Fifth Circuit precedent that polygraph evidence
is
inadmissible in federal court for any purpose. On appeal,
the
Fifth Circuit concluded that its per se rule against the admission
of polygraph evidence had not survived Daubert.
The court noted
the "tremendous advances" in polygraph instrumentation
and
technique, recent research showing that the exams are highly
accurate in predicting truth or deception, increasing
standardization within the profession, and the widespread
use of
polygraphy within industry and government. Id.
at 434.
Nevertheless, the court declined to address the admissibility
of
the polygraph evidence and instead remanded the case with
instructions that the district court consider the evidentiary
reliability and relevance of the evidence under the teachings
of
Daubert. In
passing, the court observed that if polygraph evidence
is determined to be reliable it is almost inevitable that
such
evidence will be relevant, since it will bear upon the credibility
of the witness as to a disputed fact. Id.
at 433 ("If polygraph
technique is a valid (even if not certain) measure of truthfulness,
then there is no issue of relevance.") 2
¶Given the liberal admissibility standards of the Federal
Rules
of Evidence and Daubert's
more receptive treatment of novel
scientific evidence, Posado
envisioned "an enhanced role for Rule
403," requiring courts to determine whether polygraph
evidence will
have "an unusually prejudicial effect which is not justified
by its
_____________________
2 This, of course, assumes that the right questions were
asked by the polygrapher. If a polygrapher asks questions that do
not precisely "fit" the issues in the case, then the results of the
polygraph would not "assist the trier of fact to determine a
fact in issue." Fed. R. Evid. 702. "`Expert testimony which does
not relate to any issue in the case is not relevant and, ergo, non-
helpful.'" Daubert, 113 S.Ct. at 2795 (quoting 3 J. Weinstein & M.
Berger, Weinstein's Evidence ¶702 [02] , p.702-18 (1988))
probative value." United
States v. Posado, 57 F.3d at 435. In
that case, the defendants had not only notified the prosecution
of
their intent to take a polygraph exam but had offered the
prosecution an opportunity to participate in that exam. Id..
Furthermore, the polygraph evidence was offered during a pretrial
hearing, not during a jury trial. While the Posado
court did not
prescribe these factors as conditions to admissibility in
every
case, it did emphasize that in exercising their role as
"gatekeepers" under Rule 403, the district courts
may insist that
litigants use test procedures and protocols that
reduc[e] the possibility of unfair prejudice and increas[e]
reliability." Id.
at 435.
¶Recently in United
States v. Pettigrew, 77 F.3d 1500 (5th Cir.
1996), the Fifth Circuit upheld the district court's exclusion
of
the results of a polygraph examination during trial because
the
defendant failed to satisfy the relevance prong of the Rule
702/Daubert
inquiry. The questions asked during the polygraph exam
simply did not "fit" the facts of the case and therefore
would not
assist the jury in determining a tact in issue. Accordingly,
it
was not necessary for the district court to evaluate the scientific
validity of the evidence. Employing a Rule 403 analysis, the
court
further noted that there was a substantial potential for prejudice
given the absence of any safeguards such as had been present
in
Posado. while
the particular safeguards present in Posado
were not
necessarily essential to admissibility, the Court felt that
"the
absence of these or other similar safeguards certainly weighs
most
heavily against the admission of polygraph evidence."
Id. at 1515
(emphasis added)
¶The most thorough treatment of polygraph admissibility
issues
can be found in two district court opinions from Arizona and
New
Mexico, both of which carefully apply the Daubert
analysis to
exculpatory polygraph evidence sought to be admitted by a
defendant
in his criminal trial. United
States v. Galbreth, 908 F. Supp. 877
(D.N.M. 1995); United States
v. Crumby, 895 F. Supp. 1354 (D. Ariz.
1995). Both courts relied heavily upon the testimony of Professor
David Raskin, a preeminent expert in the field of psychophysiology
and polygraphy and a colleague of Professor Charles R. Honts,
who
testified for the defendant in this case. After a comprehensive
review of polygraph theory and the underlying methodology,
both
courts concluded that the polygraph evidence offered by the
defendant met the reliability and relevancy standards of Rule
702
and was not substantially outweighed by the danger of unfair
prejudice or confusion of the issues. Accordingly, both courts
allowed the admission of the polygraph evidence at trial,
although
for a limited purpose.
¶The Crumby
court found a "significant increase in reliability
of polygraph evidence over recent years," 895 F. Supp.
at 1358, and
opined that this "maturation" of the science of
polygraphy, if
cautiously accepted, "will lead to a fairer and more
just system of
criminal and civil jurisprudence." Id.
Both Crumby and
Galbreth
considered some variant of the "control question"
technique, the
predominant examination format utilized by modern polygraphers
(more about that later). Applying the Daubert
factors, both courts
found that polygraph theory and technique had been tested
by the
scientific method and repeatedly validated in field and laboratory
studies, subjected to stringent peer review and extensive
publication, shown to have a remarkably low error rate when
properly applied by a skilled polygrapher, enjoyed substantial
acceptance within the scientific community, and was widely
used
within government and industry. Galbreth,
908 R. Supp. at 891-893;
Crumby, 895
9. Supp. at 1359-60. The Crumby
court acknowledged
that "the potential prejudicial effects of permitting
a jury to
consider a polygraphy examination are enormous, and thus rather
disturbing," and called for the "utmost caution"
before such
evidence is received. Id.
at 1361. Crumby
proposed the following
safeguards as a means of limiting the prejudicial effects
of such
evidence: (1) polygraph evidence may only be used to impeach
or
corroborate the credibility of the witness, (2) neither the
defendant nor the expert may testify regarding the specific
questions asked on the exam, (3) the party offering the evidence
must afford sufficient notice to the other party, and (4)
the
opposing party must have a reasonable opportunity to administer
its
own test. Id.
at 1363-65. While not mandating a particular list
of safeguards to be followed in all cases, the Galbreth
court
emphasized that the polygraph exam had been conducted by a
renowned
expert in the field of polygraphy who had followed the rigorous
requirements of the New Mexico Rules of Evidence, which, as
conditions to admissibility, require an experienced and trained
polygrapher, the tape recording of the examination, a standardized
scoring technique, disclosure of all polygraph exams taken
by the
subject, and production of all polygraph materials prior to
trial.
Galbreth, 908
F. Supp. at 892.
¶A handful of other decisions have addressed the admissibility
of polygraph evidence in light of the Daubert
decision. See e.g.,
United States v. Padilla,
908 F. Supp. 923 (S.D. Fla.
1995) (testimony of polygraph examiner could be admitted at
trial
for purpose of corroboration of defendant's credibility, if
challenged); United Sates
v. Dominguez, 902 R. Supp. 737 (S.D.
Tex. 1995) (assuming that the results of defendant's polygraph
test
were reliable and relevant, the probative value of the test
was
substantially outweighed by the danger of unfair prejudice
because
(1) defendant did not invite the government to participate
in the
test and (2) defendant would agree to take a government-
administered polygraph only upon condition that the government
dismiss all charges if defendant passed the exam, conduct
no post-
test interview, and permit defendant's representatives to
attend
the session); Ulmer v.
State Farm Fire & Casualty Co., 897 F. Supp.
299 (W.D. La. 1995) (polygraph exam administered to plaintiffs
in
civil suit against insurance company, which corroborated their
denial of setting fire which destroyed their home, was admissible
at trial since the exam met the reliability and relevance
tests of
Rule 702 and was not unduly prejudicial given the circumstances
of
that case). See also United
States v. Sherlin, 67 F.3d 1208, 1216-
17 (6th Cir. 1995) (noting that "Rule 403 offers a basis
for
excluding polygraph results independent of Daubert,"
the court
found that the evidence had little probative value because
the
defendant "had no adverse interest at stake in the privately
commissioned polygraph" and that using a polygraph to
bolster
credibility is "`highly prejudicial,' especially where
credibility
issues are central to the verdict.").
IV. APPLICATION OF DAUBERT
TO THIS CASE
¶At the outset of the pretrial hearing the government
- - though
with some hesitation -- bowed to the advances in the field
of
polygraphy and acknowledged that the particular version of
the
"control question" technique which is currently
the most widely
used in the field has been tested by the rigors of the scientific
method and determined to be a valid test for detecting deception.
Accordingly, the government has (apparently for the first
time)
conceded that a polygraph examination, when properly administered
by a qualified examiner using the correct technique, yields
results
which satisfy the reliability prong of the Rule 702 analysis.
¶The government was not prepared, however, to stipulate
to the
admissibility of the particular polygraph examinations administered
to the defendant in this case. The government contends that
the
initial polygraph, performed by Captain Johnson of the Richmond
County Sheriff's Department, fails to meet the relevance prong
of
the Rule 702 inquiry, for the questions asked during the exam
simply do not "fit" the facts of this case. As to
the second
polygraph, administered by Professor Charles Rants, the government
raises no challenge to the relevance of the questions asked
during
the exam but instead contends that Dr. Honts employed a maverick
technique that has not been shown to be scientifically valid,
thus
failing the reliability component of the Rule 702 standard.
It is
the latter contention that has absorbed most of the parties'
attention at the evidentiary hearing and in the briefs which
the
Court permitted to be filed after that hearing. And it is
to this
issue that the Court will first direct its attention.
A. The Honts' Polygraph
¶Professor Charles R. Honts, Ph.D., presently at the
Boise
State University, was the principal defense witness. Dr. Honts'
credentials are impeccable. After receiving a bachelor of
science
degree in psychology, Dr. Honts completed a polygraph course
at a
commercial polygraph school in San Diego, California, and
spent
several years as a professionally licensed polygrapher in
Virginia.
He obtained a Master of Science in experimental psychology
from the
Virginia Polytechnic Institute and State University in 1982
and
then attended the University of Utah in Salt Lake City, where
he
received a Ph.D. in experimental psychology in 1986. While
at the
University of Utah, he studied under and later collaborated
with
Professor David Raskin, a pioneer of modern polygraphy technique
and one of the leading experts in the field. Throughout Dr.
Honts'
academic career, he emphasized psychophysiology, the science
concerned with how the mind and body interact.
¶Dr. Honts' employment and other professional achievements
are
equally impressive. In addition to teaching positions throughout
his graduate and post-graduate career, he has taught at the
Department of Defense Polygraph Institute (known as "DODPI"
in the
polygraphy world, and so referred to herein) at Ft. McClellan,
Alabama from 1988 to 1990. DODPI is responsible for teaching
polygraphy techniques to all federal agencies except the CIA
Dr.
Honts has frequently taught courses and seminars to the law
enforcement community, is a member of several distinguished
professional societies, and has performed as an editor for
a number
of professional publications. Dr. Honts has also conducted
or
assisted in conducting many laboratory and field studies relating
to the detection of deception, many of which have been published.
His curriculum vitae lists some seventy-two publications in
the
professional literature, the vast majority of which address
some
aspect of polygraph testing or technique. Dr. Honts has repeatedly
testified as an expert witness in the field of polygraphy
in
various federal and state court proceedings. He estimates
that he
has performed over two thousand polygraph exams.
¶The science of polygraphy rests upon the underlying
theory
that the mental state associated with conscious deception
causes
physiological changes that can be measured using appropriate
instrumentation. More precisely, it is theorized that through
the
careful interpretation of these physiological changes it is
possible to assess the truthfulness of a person's statements.
The
modern polygraph instrument is a sophisticated device designed
to
detect subtle changes in the body's autonomic nervous system.
Typically, the device measures changes in galvanic skin response
(attributable to sweat gland activity) , relative blood pressure,
respiration, and peripheral blood flow. Such autonomic responses
are generally beyond a person's voluntary control and therefore
may
be used as a sort of barometer reflecting the body's responses
to
various stimuli.
¶Early polygraphy tests employed the relevant/irrelevant
question technique, in which the subject was asked a series
of non-
threatening, irrelevant questions intended to produce no
physiological response (e.g., is your name X) and a question
relevant to the incident under investigation (e.g. , did you
rob the
store). This technique rests upon the theory that a deceptive
answer will produce a specific physiological response that
is
measurably different from response produced by a truthful
answer.
The relevant/irrelevant technique has been determined by
researchers to produce an unacceptably high number of "false
positive" errors (because even an innocent subject will
recognize
the significance of the relevant question and may react to
it) and
has generally been discarded in favor of other techniques
that have
been shown to have a higher degree of reliability.
¶Another member of the polygraphy family is the concealed
(or
guilty) knowledge technique, which measures the subject's
physiological response to information that only the perpetrator
of
the crime would have. For example, in a burglary case the
suspect
would be asked about a series of items that included both
the
particular item stolen and other items not involved in the
theft.
While this format has its advocates, it has been used only
rarely,
if at all, in American forensic polygraphy, Misconceptions
and
Reevaluation -- Polygraph Admissibility after Rock and Daubert,
1996 U- Ill. L. Rev. at 412-13; The Polygraph in 1995: Progress
in
Science and the Law, 71 N.D. L. Rev. at 992-93, and none of
the
experts in this case suggested its use here.
¶The predominant format employed in the field of polygraphy
is
the "control question" technique, which is designed
to measure a
subject's differential response to two separate types of questions:
relevant questions, which relate to the matter under investigation,
and control (or comparison) questions which are unrelated
to the
incident under investigation but are nevertheless designed
to
produce some anxiety or stress on the part of an innocent
subject.
¶The traditional control question test employs one or
more
questions designed to elicit a "probable lie" about
a matter not
directly related to the incident under investigation. Under
this
format, the examiner carefully devises a deliberately vague
question that is designed to trick the subject into giving
a
deceptive response. For example, the subject might be asked
whether, prior to the incident at issue, he had ever done
anything
that was dishonest, illegal, or immoral. The technique assumes
that the innocent subject, who is maneuvered into stating
that he
has led a perfect life, will show a strong physiological reaction
to the control question because of uncertainty about his response,
and further assumes that the innocent subject's reaction to
the
control question will be measurably greater than his truthful
denial of the relevant question. The guilty subject, however,
will
be more concerned about the relevant question and will therefore
exhibit a stronger differential response to that question
than to
the more vague control question.
¶There is no dispute in this case that the "probable
lie"
version oft the control question technique, when properly
employed,
is a highly accurate method for detecting deception and possesses
the type of scientific validity that satisfies the reliability
prong of Rule 702. Through numerous field and laboratory studies,
researchers have determined that polygraph examinations using
this
technique produce results that have an accuracy rate of
approximately ninety percent. The researchers have found that
the
rate of accuracy for detecting deception is slightly better
than
the rate for detecting truthfulness -- i.e., the probable
lie
control question technique produces slightly more false-positive
errors than false-negative errors.
¶In recent years a number of researchers, including Dr.
Honts,
began to experiment with another version of the control question
test referred to as the "directed lie" technique,
which had first
been developed within the military intelligence community
in the
mid to late 1970's. As in the probable lie technique, the
subjects
are asked relevant questions that address the specific incident
at
issue. But rather than devising a control question designed
to
trick or steer the subject into answering with a lie, under
the
directed lie technique the subject is instructed to give a
false
response to the control question. The differential response
to the
control question, which produces a known lie, and the relevant
question is then measured by the examiner. The technique rests
upon the theory that guilty subjects will react more strongly
to
the relevant question while innocent subjects will react more
strongly to the directed lie control question.
¶In this case, Professor Honts utilized both probable
lie and
directed lie control questions in administering a polygraph
examination to the defendant. He testified that this "mixed
format" or hybrid technique is routinely used by Dr.
Raskin and
other researchers at the University of Utah and is merely
a
variation or refinement of the traditional control question
technique. Although one court has specifically found this
technique "to be at least as accurate as the probable
lie control
question technique" and has determined that it satisfies
the
reliability and relevance components of Rule 702, United
States v.
Galbreth, 908
R. Supp. at 894, the government challenges that
conclusion and has offered expert testimony in support of
its
position that the "hybrid" technique employed by
Dr. Honts lacks
scientific validity. But even if the theory is sound, the
government contends that the administration of the test in
this
case was significantly flawed and therefore yielded results
that
lack evidentiary reliability.
¶This Court must resolve this dispute using the analysis
set
forth in Daubert,
as outlined above. As Daubert
teaches, the mere
existence of a heated scientific debate among respected experts
is
not alone sufficient to find that particular evidence -- even
if
voiced by those espousing a minority position -- fails to
qualify
as "scientific knowleIge."3
With this in mind, the Court will
analyze the disputed evidence in terms of the Daubert
factors.
1. Has the technique utilized
by Dr. Honts been tested?
¶It is undisputed that the probable lie version of the
control
question technique has been subjected to extensive scientific
inquiry and has been tested repeatedly by a variety of researchers
using both laboratory and field studies. See
United States v.
Galbreth, 908
R. Supp. at 885 (citing Dr. Raskin's estimate that
"hundreds of studies had been conducted and reported
in the
____________________
3 In Daubert, the issue was whether the drug Bendectin was
responsible for the plaintiffs' birth defects. The defendant's
expert reviewed the extensive published scientific literature (more
than 30 published studies involving over 130,000 patients) and
found that no study had linked Bendectin to human birth defects.
The defendants countered with their own well-credentialed experts,
who had conducted animal and pharmacological studies as well as a
"reanalysis" of the published literature. Because the views of
plaintiffs' experts had not gained "general acceptance" in the
field of epidemiology, the district court granted summary judgment
to the defendant, a ruling upheld on appeal. In rejecting the
general acceptance standard, the Supreme Court made clear that a
novel theory adopted by only a minority of scientists may
nevertheless be admissible if it is grounded in the methods and
procedures of science. Thus, even if scientific evidence is
"shaky," it may nevertheless be admissible. 113
S.Ct. at 2798.
literature.").4
When the directed lie format first came to the
attention of Dr. Raskin, Dr. Honts, and the other researchers
at
the University of Utah, they viewed it with some degree of
skepticism. Nevertheless, the Utah researchers began to study
the
directed lie format in 1984. In the course of a field study,
Drs.
Raskin and Honts began to administer polygraphs using the
mixed
format technique that combines both probable lie and directed
lie
control questions (the exact "hybrid" approach utilized
in this
case). The field study involved some twenty-five actual criminal
cases where the truthfulness of the subject was established
through
either a confession or convincing evidence. The researchers
scored
the polygraph exams both with and without the directed lie
control
questions. They then did a statistical analysis of the results
obtained using only the probable lie questions and the results
obtained using both the probable lie and directed lie questions.
_______________
4 In the view of Dr. Honts, the probable lie, directed lie,
and hybrid formats involve mere variations in the method of
preparing the control question and do not truly constitute
different "tests." Because all three formats rest upon the same
underlying theory, he believes that the studies which establish the
accuracy of the probable lie control question technique lend
credence to the directed lie control question technique.
This field study suggested that the addition of the directed
lie
questions significantly improved the accuracy of the test.5
¶Because of the promising results of the field study,
Stephen
Horowitz, a doctoral candidate working under Drs. Raskin and
Honts,
conducted a laboratory study of the competing techniques as
part of
his dissertation. In this study the researchers had students
commit a "mock crime" by removing an item from a
secretary's desk.
The students were then given a polygraph exam, with the promise
of
a twenty-five dollar reward if they "passed" the
test. The study
was designed to look at the probable lie and directed lie
formats
in isolation so that a comparison could be made between the
two
techniques. The directed lie tests were further divided into
"trivial directed lies" (such as instructing a person
to deny that
2+2=4) and "personally relevant directed lies" (such
as directing
the subject to state that he had never told a lie in his entire
life). That study confirmed the accuracy of the directed lie
method, particularly the personally relevant question technique.
___________________
5 The government endeavored to cast doubt about the
validity of this field study by suggesting that a few subjects who
had passed the exam later confessed to the crime. Dr. Honts
pointed out, however, that a certain number of false negative
responses are predictable under both the hybrid and probable lie
versions of the control question technique, both of which have an
error rate of approximately two to ten percent. These
recantations, therefore, do not undermine the Utah study.
Dr. Honts testified that further studies had been conducted
at
DODPI which produced essentially the same results as the earlier
Utah studies.
¶Thus, as did the Galbreth court, 908 R. Supp. at 891,
I find
that researchers in the field of psychophysiology, using the
established methodology of their discipline, have tested both
probable lie and directed lie variants of the control question
technique, assessing the accuracy of those formats both in
isolation and in combination. The specific technique used
by Dr.
Honts in this case has, therefore, been tested by the scientific
method, though it must be acknowledged that far more studies
have
been conducted of the traditional probable lie version of
the
control question technique.
2. Has the technique employed by Dr. Honts been subjected to peer review
and publication?
¶The field study conducted by Drs. Honts and Raskin,
which
employed polygraph examinations utilizing both probable lie
and
directed lie control questions, was published in a peer-reviewed
scientific journal in 1988. Charles R. Honts & David C.
Raskin, A
Field study of the Directed
Lie Control Question, 16 J. Police
Science & Admin. 1 (1988). The Horowitz study of the directed
lie
and probable lie techniques has been subjected to peer review
on
two occasions, both when presented as a paper at the American
Psychological Society meetings and when recently accepted
for
publication by the Journal of Psychophysiology. Thus, the
studies
of the directed lie format have been subjected to the scrutiny
of
the scientific community. See
Galbreth, 908 F.
Supp. at 891.
3. The technique's rate
of error
¶According to Dr. Honts, in a number of high quality
laboratory
studies, the rate of error for the control question technique
has
been determined to be in the range of ten percent, whether
the
examiner used probable lies or directed lies as controls.
He
noted, however, that the accuracy rate for the directed lie
format
was slightly better than the probable lie version of the test.
He
further testified that field studies, which tend to produce
higher
estimates of accuracy for guilty subjects, had demonstrated
that
the control question technique accurately identifies guilty
subjects some ninety-eight percent of the time but accurately
identifies innocent subjects only seventy-five percent of
the time.
He testified that field tests which included directed lie
control
questions significantly reduced the number of false positive
errors
and, therefore, tended to be less likely to falsely accuse
an
innocent person of engaging in deception. So, overall, the
studies
indicate that the directed lie format has a range of error
of
approximately five to ten percent.
¶Dr. Stanley Abrams, an expert called by the government,
expressed concern about the utilization of directed lie control
questions by Dr. Fonts and the other Utah researchers. While
Dr.
Abrams conceded that the inclusion of directed lie controls
tended
to reduce the number of false positive errors obtained under
an
exclusively probable lie format, he surmised that the hybrid
approach might have the untoward effect of simultaneously
increasing the number of the false negative errors by causing
deceptive people to appear more truthful. Dr. Abrams conducted
a
"pilot study" of this issue that yielded preliminary
results
suggesting that scoring the directed lie responses would cause
an
increase in the number of false negatives. Dr. Abrams, however,
readily conceded that there were inherent "weaknesses"
in his pilot
study, that it was inappropriate to draw any generalizations
based
on that study, and that he had not read Dr. Fonts' entire
critique
of that study.6
While Dr. Abrams opined that the hybrid technique
____________
6 Dr. Abrams' pilot study was published in the trade
journal Polygraphy in 1991. Dr. Honts, who was on the editorial
board of that journal, opposed the publication of the study on the
ground that it did not meet scientific standards, and he later
might increase the number of false negative errors at the
expense
of decreasing the number of false positives, he offered no
precise
figures about his assessment of the error rates using the
hybrid
technique. Based on the current record, therefore, the Court
accepts the testimony of Dr. Honts, which is based on empirical
data generated by a published study subjected to peer review,
that
the error rate for the hybrid approach is approximately the
same
(if not better than) the error rate for the probable lie technique,
which is approximately ten percent.
¶Dr. Honts testified that it is possible for some subjects
to
defeat a control question polygraph test by using certain
physical
or mental countermeasures, such as a subtle tensing of the
muscles,
biting the tongue, or doing mental arithmetic in response
to the
control questions. Indeed, studies indicate that, with proper
training, up to fifty percent of the population can learn
to beat
the test. The research indicates, however, that in order for
countermeasures to be effective the subject must receive some
specialized training in their use and that merely furnishing
a
subject with information about countermeasures does not appear
to
_________________
published a formal critique of the study. Dr. Abrams conceded that
no studies had replicated the results of his pilot study and
suggested that more work needed to be done in this area.
work. Furthermore, Dr. Honts testified that when the polygraph
test is scored by means of a computerized analysis of the
subject's
physiological responses (a relatively new innovation in the
field
of polygraphy) only about fifteen percent of those trained
in
countermeasures were successful in beating the test. The
government's experts did not dispute this research or place
much
emphasis upon countermeasures in their testimony.
4. Existence and maintenance
of standards
¶One of the chief criticisms of polygraphy is the lack
of any
accepted standards controlling the application of the polygraph
technique in a particular case. In the Galbreth
case, Dr. Raskin
referred to the "sorry state of training for polygraph
examiners,"
908 F. Supp. at 889, and the Galbreth
court noted that the American
Psychological Association had commented on the need for improved
training, since polygraphers "often have limited training
and
expertise in psychology and interpretation of psychophysiological
measures." Id.
This assessment has been echoed by the academic
community as well: "Effective standardization is crucial
to the
development of a reliable technique, and its absence in polygraphy
has significantly diminished the reliability of polygraph
evidence." Misconceptions
and Reevaluation -- Polygraph
Admissibility after Rock
and Daubert, 1996 U. Ill. L. Rev. at 401.
And in his own recent law review article, Dr. Honts noted
that
various commentators had decried the poor quality of training
and
competence of polygraph examiners, citing a prior article
(which he
co-authored) expressing a "particularly pessimistic [view]
that
internal forces in the polygraph profession would be able
to bring
about significant changes in this area." Charles R. Honts
& Bruce
D. Quick, The Polygraph
in 1995: Progress in Science and the Law,
71 N.D. L. Rev. 987, 998 (1995). Thus, while the Eleventh
Circuit
in Piccinonna
referred to the increased standardization within the
profession, even the staunchest advocates of polygraphy recognize
that inadequate standardization remains a matter of general
concern.
¶In this case, the defendant was examined by Dr. Honts,
who was
recognized by the Galbreth
court as a "highly qualified polygraph
examiner." Galbreth,
908 F. Supp. at 894. This Court concurs with
that assessment. As noted earlier, the focus of Dr. Honts'
professional career as a clinical psychologist has been in
the area
of psychophysiology and, specifically, polygraphy. He studied
under and collaborated with "perhaps the world's leading
expert in
the field of autonomic psychology and on polygraphy technique,"
Galbreth, 908
F. Supp. at 889, and he spends much of his time
conducting research in this area. He worked for several years
with
the government's own polygraphy institute and has taught or
advised
numerous law enforcement agencies concerning polygraphy issues.
Furthermore, in conducting his exam in this case, Dr. Honts
followed the rigorous standards established by the New Mexico
legislature, standards which are recognized as the most
comprehensive treatment of polygraphy issues and which have
been
urged as a "model solution" for other courts to
follow.
Misconceptions and Reevaluation
-- Polygraph Admissibility after
Rock and Daubert,
1996 U. Ill. L. Rev. at 388. I therefore find
that while the lack of examiner qualifications and standards
remains a problem in the abstract, these concerns are not
relevant
in this case. See United
States v. Galbreth,
908 F. Supp. at 889
(reaching the same conclusion with respect to Dr. Raskin)
5. Acceptance in the relevant scientific community
While the "general acceptance" of a scientific theory
or
technique is no longer a condition to its admissibility, the
level
of acceptance remains a factor to be considered by the court
in
making its reliability assessment. Daubert,
113 5. Ct. at 2797.
In 1989, the Eleventh Circuit noted "that in recent years
polygraph
testing has gained increasingly widespread acceptance as a
useful
and reliable scientific tool." United States v. Piccinonna,
885
F.2d at 1535. More recent decisions, applying a Daubert
analysis,
have reached the same conclusion. See,
e.g., United States v.
Posado, 57 F.3d
at 434 ("Polygraphy is now widely used by employers
and government agencies alike."). In addition to being
accepted by
government and business, it now appears that the use of the
polygraph has gained widespread acceptance among the community
of
scientists who specialize in the field of psychophysiology,
particularly those who are well-versed in the recent scientific
literature. United States
v. Galbreth,
908 F. Supp. at 892-93 ("it
now appears that there is general acceptance of the control
question polygraph technique [by autonomic psychophysiologists]
when it is administered properly by a qualified examiner.");
United
States v. Crumby,
895 F. Supp. at 1360 ("there is a large community
of psychophysiologists who accept and endorse the use of polygraph
examinations in a variety of circumstances."). The Galbreth
and
Crumby decisions
both cite two surveys of the Society for
psychophysiological Research concerning the utility of the
polygraph device in detecting deception. According to these
surveys, some two-thirds of the members of the society view
polygraph tests as either a sufficiently reliable technique
to be
the sole determinant of credibility or a useful diagnostic
tool to
consider with other available information. Among those members
of
the society who were well-informed about the polygraph literature,
the acceptance of the polygraph test as a useful diagnostic
tool
rose to some eighty percent. Galbreth,
908 F. Supp. at 892-93;
Crumby, 895
F. Supp. at 1360; see The Polygraph
in 1995: Progress
in Science and the Law,
71 N.D. L. Rev. at 1016 & n.229 (setting
forth the specific questions used during the survey). The
basic
premise of polygraphy -- that the state of mind induced by
conscious deception causes physiological changes in the autonomic
nervous system and that those physiological changes are capable
of
being measured with appropriate instrumentation -- clearly
enjoys
general acceptance within the field of psychophysiology. There
also appears to be substantial acceptance of the further
proposition that through the appropriate interpretation of
these
physiological changes it is possible to make inferences about
a
person's credibility in a forensic setting -- i.e., that a
skilled
examiner can distinguish between the physiological responses
of
those practicing deception and those who are not. But, as
this
case suggests, there remain considerable differences of opinion
within the relevant scientific discipline as to the best technique
for making such credibility assessments.
¶All of the experts who testified before this Court accepted
the notion that the most appropriate technique for making
credibility assessments in a forensic setting is some version
of
the control question test. But, as Dr. Honts noted in a recent
law
review article, the control question technique by no means
enjoys
universal acceptance as the most accurate means for detecting
deception. Indeed, he points out that the technique "has
been the
subject of a polemic controversy in the scientific literature
for
over twenty years," a controversy that involves "a
basic
disagreement about the reasonableness and rationale of the
CQT."
The Polygraph in 1995:
Progress in Science and the Law, 71 N.D. L,.
Rev. at 991. See David L. Faigman, et al., eds., MODERN
SCIENTIFIC
EVIDENCE: The Law and Science
of Expert Testimony (to be published
in 1997) (containing a chapter entitled "Polygraph Tests,"
which
sets forth a lengthy debate between Professors Raskin, Honts
and
Kircher, who defend the theory underlying the control question
technique, and Professors Iacono and Lykken, who challenge
the
control question technique but support the use of the guilty
knowledge technique, at least in certain instances).7
Based on the
______________
7 At the Court's request, West Publishing Co. furnished an
advance copy of the final draft of this book (which will bear a
1997 copyright date). Because the work is still undergoing the
editorial process, West requested that the Court not quote
from the
testimony in this case, however, I find that the control question
test is the most widely used technique in the field of polygraphy,
has been the subject of numerous published studies, and enjoys
at
least substantial acceptance among psychophysiologists who
are
familiar with the polygraphy literature.
¶In this case, the parties have offered no hard data
regarding
the acceptance of the precise control question format employed
by
Dr. Honts in the polygraph test he administered to the defendant.
________________
material without prior approval. In the lengthy chapter dealing
with polygraph tests (which will appear as Chapter 14), Professors
Iacono and Lykken challenge the validity of the prior surveys of
the Society for Psychophysiological Research and publish the
results of their own survey, which suggests that the control
question technique has not gained general or even substantial
acceptance among the members of the society. Because these
statistics were not offered into evidence before this Court and
have not been tested in the crucible of cross-examination, the
Court is unwilling to rely upon this data in resolving the
admissibility issues in this case. Professor Lykken's challenge to
the control question technique is longstanding and has been the
subject of repeated publications in the professional literature.
See The Polygraph in 1995: Progress in Science and the Law, 71 N.D.
L,. Rev. at 991-92 nn.33-35, 992 nn.38-39 (where Professor Honts
refers to articles by Lykken critical of the control question
technique and advocating the guilty knowledge test). Presumably,
government counsel is aware of Professor Lykken's views, for he
questioned Honts about his law review article. It is interesting
to note that Professor Lykken's attack on the entire control
question technique would conflict not only with Professor Honts'
views but also with those of DODPI, the government's own school for
training polygraphers. Perhaps this explains the government's
reluctance to use Professor Lykken or his theories in this or any
of the other recent federal cases addressing polygraph issues.
The Court is unable to find that the hybrid test utilized
by Dr.
Hoots has generated "widespread acceptance" as the
preferred
questioning technique among the community of psychophysiologists
or
polygraphers in general. Nevertheless, while the hybrid test
is a
relative new procedure in the field of polygraphy, it is avidly
supported by a respected group of researchers and is routinely
utilized by at least some law enforcement agencies. Even DODPI,
the government's own school of polygraphy, has utilized the
directed lie as part of its training, although it does not
appear
that the directed lie technique is in widespread use among
field
polygraphers (with the exception of the intelligence community)
But even if the field use of the directed lie technique is
not
widespread, the Court is more interested in its acceptance
among
scientists than among polygraphers in general, many of whom
lack
any scientific training at all, as evidenced in this case.8
The
fact that the hybrid technique advocated by Professors Raskin,
Honts and the other Utah researchers has yet to gain general
or
even widespread acceptance does not persuade the Court that
the
______________
8 Captain Johnson, called by the defendant, has spent his
entire career in law enforcement and apparently has no scientific
training. Thomas Lewis, a supervisory special agent with the FBI,
was educated in the field of business administration and
accounting, although he has taken some courses in psychophysiology.
technique lacks scientific validity. Although polygraphs (of
one
kind or another) have been utilized for decades, only recently
has
intensive research been conducted in this area. In this developing
area of science, it is not surprising that no one technique
or
viewpoint has gained general acceptance within the scientific
community. Based on the evidence introduced at the hearing,
the
Court is satisfied that the hybrid technique used by Dr. Honts
has
sufficient support within the scientific community to satisfy
the
reliability concerns of Daubert.
6. Application of the technique
¶In assessing whether a polygraph test satisfies the
reliability component of Rule 702, the court must determine
not
only the validity of the technique in the abstract but also
ensure
that the technique was properly applied by a competent examiner.
United States v. Galbreth,
908 F. Supp. at 881-82, 893-94. "Absent
a showing that the examination was properly conducted by a
competent examiner, the proponent simply cannot establish
that the
evidence is sufficiently trustworthy to be admissible in court."
Id. at 882.
Thus, this Court rejects the defendant's argument that
all issues regarding the application of the scientific technique
go
merely to the weight and not the admissibility of the polygraph
evidence. Instead, as part of its reliability assessment,
the
court must ensure that the polygraph results were derived
using a
faithful application of a valid scientific technique.
¶In this case, the polygraph exam was performed by Dr.
Honts,
one of the principal authorities on polygraph theory and technique
and a chief proponent of the "hybrid" test developed
by researchers
at the University of Utah. Dr. Honts utilized a state-of-the-art
polygraph instrument designed to take accurate measurements
of
respiration, blood pressure, sweating, heart rate, and blood
flow.
He further utilized electronic sensors (under the chair where
the
defendant was seated) as a means of detecting subtle movement
or
tension in the subject's lower body, which might be indicative
of
the use of physical countermeasures. Dr. Honts complied with
the
rigorous standards established by the New Mexico legislature
in
administering the test, including the requirement that the
tests be
taped. The Court has carefully reviewed the videotape of the
entire polygraph session and has considered the testimony
concerning the test procedure.
¶Dr. Honts conducted an extensive pretest interview wherein
he
obtained the defendant's consent to the polygraph, familiarized
the
defendant with the polygraph device and test procedure, and
elicited information from the defendant about his history,
present
condition, and understanding of the purpose of the test and
nature
of the criminal charges. He then introduced the questions
that
would be asked during the test. Dr. Honts artfully introduced
the
"probable lie" control question in a way that maneuvered
the
defendant into giving a deceptive answer. In addition, he
instructed the defendant to lie as to two other "directed
lie"
control questions.
¶After calibrating his instrument and running a preliminary
test which required the defendant to lie about a number that
he had
selected, Dr. Honts then proceeded to administer three separate
series of charts using the questions that he had introduced
earlier. He permitted the defendant to take a break between
each
round of questioning, which is standard polygraphy practice.
In
keeping with his training and research techniques, Dr. Honts
discussed test questions with the defendant during these breaks
between the tests.
¶At the conclusion of the examination, Dr. Honts scored
the
results using both the traditional "Utah" technique
(which is the
standard used by most polygraphers) and a more sophisticated
computer analysis developed in recent years. Both scoring
methods
yielded the same result, strongly indicating that the defendant
was
not being deceptive when he answered the relevant questions
on the
test.
¶The government's expert witnesses have challenged essentially
two aspects of the administration of the Honts' test. First,
both
Dr. Abrams and Agent Lewis were of the opinion that a polygrapher
should discuss the test questions only during the pretest
interview
and should carefully avoid any reference to those questions
during
the breaks between the administration of the charts. Agent
Lewis
said that questioning between the administration of the charts
is
not the DODPI or FBI approach, a position that Dr. Honts does
not
dispute. Dr. Abrams said that the technique utilized by Dr.
Honts
is flawed because, by overemphasizing the control questions,
it has
a tendency to increase the number of false negative errors,
thereby
causing some subjects to appear truthful who are actually
being
deceptive. While Dr. Abrams suggested that there were some
older
studies that supported his position that there should be no
talking
between the administration of the tests, he was unable to
cite a
single study during his testimony. Agent Lewis, who stated
that he
reads all of the professional literature as part of his duties
as
an FBI supervisor, was not aware of any such studies.
¶Dr. Abrams and Agent Lewis also expressed concern that
during
the administration of the test the defendant periodically
moved the
fingers of his right hand, a movement which may have distorted
the
blood pressure readings (since the cuff was attached to the
defendant's right arm). Neither Abrams nor Lewis suggested
that
these movements occurred only in response to the control questions,
and thus the movements did not indicate the deliberate use
of a
physical countermeasure in an attempt to elevate the response
to
the controls and thereby diminish the differential response
between
the controls and the relevant questions. Instead, both witnesses
testified that these twitching movements appeared to have
been
entirely random, occurring during the relevant and neutral
questions as well as the controls. Nevertheless, Dr. Abrams
believed the movement affected the blood volume reactions
(one of
the five channels of information measured by the polygraph
device)
on some of the questions and therefore prevented those readings
from being scored.
¶The Court has carefully reviewed the videotape of the
polygraph session. Following the number test portion of the
pretest interview, Dr. Honts remarked that the defendant had
a
tendency to twitch his right hand slightly during the questioning
and asked him not to move during the administration of the
test.
The defendant then endeavored to adjust his position in the
chair
in order to become as comfortable as possible. On the initial
test, the defendant slightly moved a finger on his right hand
following the first question, prompting Dr. Honts to caution
him
again to be as still as possible. During the balance of the
first
test, (which, like all three of the tests, lasted approximately
five minutes) the defendant appears to have remained perfectly
still, with no detectable motion of his right hand. At the
outset
of the second test, Dr. Honts again reminded the defendant
to
remain as still as possible. The videotape reflects, however,
that
the defendant frequently moved one or more fingers on his
right
hand at various times during the administration of the second
test.
At the outset of the third series of questions, Dr. Honts
once
again reminded the defendant of the importance of remaining
still
during the questioning. Nevertheless, the videotape reflects
some
twitching of the fingers of the defendant's right hand, although
the frequency of such movements is noticeably less than during
the -
second test. During the pauses between the tests, Dr. Honts
asked
the defendant if the questions relating to Penn-Teck were
clear and
again explained that those questions pertained to some deliberate
plan to defraud the government rather than some accident or
mistake. Dr. Honts also discussed the control questions on
the
test, asking whether anything particular had come to the
defendant's mind in response to the probable lie and deliberate
lie
questions.
¶Neither government expert testified that the polygraph
administered by Dr. Honts is completely invalid simply because
of
the random twitching of the defendant's right hand during
certain
portions of the test. Nor is the Court prepared to find that
Dr.
Honts so deviated from the standard protocol that the results
of
the polygraph examination possess no evidentiary reliability
within
the meaning of Rule 702. Nevertheless, the slight movements
of the
defendant's hand -- even though not indicative of the use
of
physical countermeasures -- remain a rich source for cross-
examination of both Dr. Honts and the defendant. Based on
the
present testimony, however, the Court is not persuaded that
the
results of the Honts polygraph are completely unreliable as
a
matter of law. "Vigorous cross-examination, presentation
of
contrary evidence, and careful instruction on the burden of
proof
are the traditional and appropriate means of attacking shaky
but
admissible evidence." Daubert,
113 S.Ct. at 2798.
¶Based on an analysis of the Daubert
factors, I find that the
technique which Dr. Honts utilized in this case has been tested
by
the scientific method, subjected to peer review, and determined
by
a respected group of researchers to be a highly accurate means
for
assessing credibility in a forensic setting. While Dr. Abrams
has
published a study challenging the technique, he conceded that
there
were inherent "weaknesses" in his "pilot study"
and that it would
be inappropriate to make generalizations from his preliminary
results. Under the teachings of Daubert,
I find that the specific
technique employed by Dr. Honts in this case is grounded in
the
methods and procedures of science and therefore qualifies
as
"scientific . . . knowledge" within the meaning
of Rule 702 and
Daubert.
7. The relevancy of the
expert testimony
¶To be admissible under Rule 702, scientific evidence
must not
only be reliable but must "assist the trier of fact to
understand
the evidence or to determine a fact in issue." As the
Fifth
Circuit has noted, "[i]f polygraph technique is a valid
(even if
not certain) measure of truthfulness, then there is no issue
of
relevance." United
States v. Posado, 57 F.3d at 433; United
States
v. Galbreth,
908 F. Supp. at 895; United
States v. Crumby, 895 F.
Supp. at 1361. The polygraph evidence offered by the defendant
in
this case bears upon his intent or knowledge, which are critical
issues in this case. Rule 702's helpfulness standard is thus
satisfied.
B. The Johnson Polygraph
¶The admissibility of the polygraph examination administered
by
Captain Johnson merits little discussion. Utilizing the probable
lie version of the control question test, Johnson drafted
his
relevant questions prior to the return of the indictment.
The
government has convincingly argued, and the defendant has
not
seriously disputed, that these questions do not precisely
dovetail
with the allegations of the indictment and, therefore, yield
responses which have little if any probative value. The control
questions formulated by Captain Johnson were equally suspect,
which
lends support to those critics who claim that most polygraphers
lack the sophistication to devise appropriate control questions.
See 71 N.D.
L. Rev. at 991. Furthermore, the test was administered
by someone who has not made a study of psychophysiology and
who
failed to record the examination. The absence of such safeguards
-- which the Court deems critical to the admission of any
polygraph
test -- significantly undermines the reliability of the examination
and creates a heightened threat of prejudice. The Johnson
test
satisfies neither the reliability nor the relevancy prongs
of Rule
702, and it fails the Rule 403 balancing test as well. It
is
inadmissible.
V. RULE 403-BALANCING
¶Even if scientific evidence meets the reliability and
relevance requirements of Rule 702, it may nevertheless be
excluded
"if its probative value is substantially outweighed by
the danger
of unfair prejudice, confusion of the issues, or misleading
the
jury, or by considerations of undue delay, waste of time,
or
needless presentation of cumulative evidence." Fed. R.
Evid. 403.
Daubert noted
that because expert evidence "`can be both powerful
and quite misleading, `" courts are permitted more control
over
experts than lay witnesses. Daubert,
113 S.Ct. at 2798 (quoting
Weinstein, Rule 702 of
the Federal Rules of Evidence is Sound; It
Should Not Be Amended,
138 F.R.D. 631, 632 (1991)). Because of the
liberal admissibility standards of the federal rules and the
Supreme Court's hospitable treatment of novel scientific evidence,
the Fifth Circuit has envisioned "an enhanced role for
Rule 403" in
the post-Daubert
era. United States v. Posado,
57 F.3d at 435.
"There can be little doubt that polygraphy evidence,
if
reliable, is relevant evidence with an enormous amount of
probative
value." United States
v. Crumby, 895 F. Supp. at 1361; United
States v. Galbreth,
908 F. Supp. at 895. Here, the polygraph exam
was administered by a highly-trained and respected scientist
who
utilized state-of-the-art equipment and a technique shown
by
empirical data to be extremely effective in detecting deception.
During the exam the defendant responded to questions that
address
the heart of the government's case: whether he "develop[ed]
a
scheme designed to defraud Medicare or Medicaid through the
use of
incorrect billing codes" or "cause[d] incorrect
billings to be
filed with Medicare or Medicaid."9
The results of the polygraph
exam are therefore highly probative of whether the defendant
is
being truthful about denying any involvement in the first
100
crimes charged in the indictment. "Clearly, the probative
value of
such evidence is beyond question." Crumby,
895 F. Supp. at 1361.
But even though the probative value of such evidence is great,
so is the potential prejudice that may result from its admission.
Id. ("the
potential prejudicial effects of permitting a jury to
consider a polygraphy examination are enormous," calling
for the
"utmost caution" before admitting such evidence).
In addition to
concerns about reliability -- which the government says are
increased because the defendant "risked nothing"
by submitting to
________________
9 In addition to these two relevant questions, Honts also
asked whether the defendant knew the billing codes were incorrect
and whether the incorrect billings were made intentionally. Def.'s
Ex. 7; Joint Ex. 1 (the videotape).
an exam before a "friendly polygrapher"10
-- there is the potential
danger that a jury will consider polygraph evidence "to
be shrouded
with an aura of near infallibility, akin to the ancient Oracle
of
Delphi." United States
v. Alexander, 526 F.2d 161, 168 (8th Cir.
1975).11
There is a further risk that admitting such evidence would
___________
10 The "friendly polygrapher" theory, discussed at length
during the hearing, rests on the notion that a litigant who submits
to a polygraph without notice to the opposing party risks nothing
in taking the exam, for he knows that the results will not be
revealed if they indicate deception. It has been hypothesized that
because there is no fear of detection in such a confidential
setting, the subject will be more likely to pass the exam. Dr.
Honts testified that this theory is not supported by any empirical
data, is not accepted by either the scientific community or
polygraphers in general, and is based on the illogical premise that
the subject doesn't care about the outcome of the test, when in
fact the subject is concerned about the results (since a favorable
result will yield a benefit and an unfavorable result may
compromise the subject's relationship with his counsel or family)
Dr. Honts testified that a person who was truly unconcerned about
the test results would not respond to either the relevant or the
control questions, resulting in an inconclusive, and therefore
unusable, score. The government's expert, Dr. Abrams, agreed that
taking an exam in a confidential setting does not generally create
a problem, for the subject realizes the importance of the test and
is therefore concerned about the results. Dr. Abrams did not even
mention the concept in his latest book, The Complete Polygraphy
Handbook.
11 In Piccinonna, 885 F. 2d at 1533 & n.14, the Eleventh
Circuit cited studies that "refute the proposition that jurors are
likely to give disproportionate weight to polygraph evidence." Dr.
Honts' own studies of this issue yielded similar results. The
government has offered no empirical data that juries are unduly
swayed by polygraph evidence. Furthermore, "the specter of undue
deference by factfinders is no longer persuasive given the Daubert
court's statement that arguments for excluding evidence based
on
lead to a time-consuming battle of the experts that would
produce
much heat but little light. Because of these concerns and
the
historic hostility to polygraph evidence, the courts that
have
rejected the per se rule of exclusion have looked to Rule
403 "as
a means of forcing litigants to use test procedures and protocols
that make for reliable test results." Id.
at 418. See Piccinonna,
885 F.2d at 1536 (requiring adequate notice to the opposing
party
that polygraph evidence will be offered, an opportunity for
the
opposing party to have its own polygrapher administer a similar
test, and limiting admissibility of polygraph evidence to
the
purpose of impeaching or corroborating witness testimony)
¶In this case, Dr. Honts adhered to the protocols required
by
the New Mexico rule, which requires a competent operator,
reliable
testing procedures, the recording of the exam, and advance
notice
of the intent to use polygraph evidence. The defendant has
also
offered to submit to a government-sponsored polygraph. The
government, however, argues that an essential safeguard missing
in
this case is notice to the government prior
to the administration
________________
visions of `befuddled juries . . . confounded by absurd and
irrational pseudoscientific assertions' are `overly pessimistic
about the capabilities of the jury, and of the adversary system
generally.'" Misconceptions and Reevaluation -- Polygraph
Admissibility after Rock and Daubert, 1996 U. Ill. L. Rev. at 405-
06 (quoting Daubert,
113 S.Ct. at 2798)
of the polygraph examination, thus depriving the government
of an
opportunity to submit relevant questions or participate in
the
selection of the polygrapher, and further eliminating any
"risk" to
the defendant. While the government is correct that the Fifth
Circuit has cited such prior notice as a particularly effective
safeguard, Posado,
57 F.3d at 435, Pettigrew,
77 F.3d at 1515, it
has not imposed such a safeguard as an absolute condition
to
admissibility. Instead, the Court has noted that "other
similar
safeguards" may suffice. Pettigrew,
77 F.3d at 1515.
¶By videotaping the polygraph examination, Dr. Honts
has made
it possible for the government to analyze the administration
of the
test in a way that is not normally possible, for most polygraphs
(including those conducted by government polygraphers) are
not
recorded. While it is true that the government was not able
to
"suggest relevant questions," the government has
never challenged
the adequacy of the relevant questions utilized by Dr. Honts.
And
while the government did not participate in the selection
of Dr.
Honts, no court has ever suggested this as an appropriate
safeguard, and, in any event, Dr. Honts is a leading figure
in the
field of polygraphy with impeccable credentials. Finally,
the
argument that the defendant "risked nothing" by
taking the exam in
a confidential setting -- while attractive to some jurists
-- is
not supported by any empirical data and is not considered
a major
concern even by the government's own expert.
¶The Court 15 satisfied that through effective cross-
examination by government counsel, the presentation of contrary
evidence, and careful cautionary instructions from the court,
the
jury will not consider polygraph evidence as a Delphic
pronouncement but will properly weigh the testimony along
with the
other evidence. Accordingly, I find that the probative value
of
this evidence is not substantially outweighed by the danger
of
unfair prejudice.
VI. HEARSAY OBJECTIONS
¶In an argument first raised in its post-hearing brief,
the
government argues that, "quite simply," the polygrapher's
testimony
concerning defendant's statements during the polygraph examination
are inadmissible hearsay. The defendant has not had an opportunity
to respond to this argument, as the Court required that all
supplemental briefs be filed within ten days of the hearing,
which
meant the defendant did not have the benefit of the government's
brief when he submitted his own. There is no need to reopen
the
briefing schedule, however, for it sees no merit to the
government's argument.
¶First, it should be noted that none of the post-Daubert
decisions addressing the admissibility of polygraph evidence
--
whether the courts favored or disfavored such evidence --
has ever
mentioned a potential hearsay problem with such evidence.
Nor in
the Court's extensive readings in this area has it encountered
any
legal commentary suggesting that there are hearsay obstacles
to
polygraph evidence. See,
e.g., John W. Strong, McCormick
on
Evidence §
206 (4th ed. 1992); Paul a. Giannelli & Edward J.
Imwinkelried, Scientific
Evidence 215-256 (2d ed. 1993); James R.
McCall, Misconceptions
and Reevaluation -- Polygraph Admissibility
after Rock and Daubert,
1996 U. Ill. L. Rev. 363 (1996); W. Thomas
Halbleib, United States
v. Piccinonna: The Eleventh Circuit Adds
Another Approach to Polygraph
Evidence in the Federal System, 80
Ky. L.J. 225 (1992). The government has cited no case law12
or
__________________
12 A few of the cases cited by the government mention
polygraphy and hearsay in the same opinion, but none of the cases
hold that polygraph evidence constitutes inadmissible hearsay. For
example, in DeMartino v. Weidenburner, 616 F.2d 708 (3rd Cir.
1980), a habeas petitioner who alleged that the prosecution had
suppressed evidence useful for impeachment conceded that certain
polygraph results were not admissible but nevertheless argued that
the statements made to the polygrapher were. The court held that
the statements were not material because they were merely
repetitive of trial testimony. Another decision cited by the
government, United States v. Rea, 958 F.2d 1206 (2nd Cir. 1992)
discusses hearsay principles (on page 1225, not page 1215 of the
opinion) but does so in a section that has nothing to do with
polygraph issues. The other cases cited deal with exceptions
to
other authority supporting its position that polygrapher testimony
about the defendant's statements during a polygraph exam
constitutes hearsay. Despite the open hostility expressed
by so
many courts to polygraph evidence in the pre-Daubert
era, the cases
have not identified the hearsay rule as being a major obstacle
to
polygraph evidence. Be that as it may, the government has
raised
the argument here and it merits the Court's attention.
¶The government states at the outset that the defendant
"seeks
to introduce his prior statements, i.e., the questions and
answers
during the polygraph session, for the truth thereof."
Post-Hearing
Br. at 17. This initial premise -- upon which the rest of
the
government's hearsay argument depends -- is flawed. It is
true
that the defendant's "yes" and "no" responses
during the polygraph
exam were intended as assertions and therefore qualify as
"statements" within the meaning of Fed. R. Evid.
801(a). But in
the context of expert testimony from a polygrapher, those
statements are being offered not for their truth but for the
physiological responses they induced. It is not the defendant's
statements that are of interest to the polygrapher but rather
the
__________________
the hearsay rule, cases which do not apply if polygraph testimony
is not hearsay.
squiggles that appear on a chart caused by changes to the
autonomic