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Today, polygraph
testing remains the most accurate means of developing and verifying the
truth and detecting deception.
Polygraph
instruments have entered the computer age. Utilizing current technology,
many portable polygraph units today are just barely more than a laptop
computer and are inherently more accurate than their older counterparts
because there are fewer "delicate" moving parts.
Published
just this year, the Department of Defense’s analyses of the validity and
reliability from data collected from both live or actual tests and mock
or laboratory tests reveal the accuracy is an amazing 98%. Those examiners
who make a living with a polygraph instrument will be quick to confirm
this statistic.
The establishment of recent rigorous standards of practice
for polygraph examiners throughout the country and an
increase in laws which protect the examinee have both
vastly increased polygraph professionalism
Frequently
in use to eliminate subjects as suspects, local police and state and Federal
government law enforcement agencies have learned to depend on the polygraph
to help guide them in their efforts at solving crimes.
The Employee Polygraph Protection Act of 1988, (EPPA)
is a federal law that was passed to ensure that an employee’s
rights would be protected during a polygraph situation
and to develop the terms under which most employees could
be polygraph tested. This law is a good law so far as
it goes to establish reasonable circumstances under which
employees may be tested.
Polygraph examiner’s who do employment related polygraph
work must be very familiar with this law and follow the
law to the letter. Fines and punishments which are given
to those business and examiners who intentionally violate
the EPPA are substantial. Employees who are asked to take
an employment related polygraph test should be provided
a copy of their rights under the Employment Polygraph
Protection Act by the test requestor or the examiner.
A recent
use of the polygraph test is to monitor the behavior of past convicted
sex offenders and to verify their activities are not in violation of the
terms of their treatment or probation agreements.
Polygraph
is also currently being used to publicly resolve domestic disputes and
questions of fidelity.
The unauthorized
and undisclosed use of drugs, alcohol, subtle movements, self induced
pain or conflict and mental gymnastics are all considered countermeasures.
Countermeasures do not help an examinee taking a polygraph to beat the
test. Competent well-trained polygraph examiners are trained to look for
the tell tale indicators of attempts to alter the appearance normal physiological
activity in the body.

Who
should take a polygraph test?
Generally,
any person who desires to verify their truthfulness regarding a specific
situation or incident is a good candidate for a polygraph. Any person
who intends to lie or withhold any relevant information about the issue
under consideration should most certainly not take a polygraph test.
How
accurate is the polygraph?
The
latest research by the Department of Defense has shown a professionally
administered polygraph examination to be approximately 98% accurate.
Is a Polygraph Examination and a Voice Stress test the same thing?
Voice
stress also known by several other names including CVSA is not and should
not be associated with polygraph testing in any way. Promoted to be capable
of doing the same thing that a polygraph can accurately do, voice stress
technology lacks any credibility in the scientific community whatsoever.
There is no known published scientific research study that confirms voice
stress tests provide results any better than chance (the flip of a coin).
Does a person’s high blood pressure affect the polygraph test?
No.
While blood pressure is one of the physiological reactions measured, it
does not affect the accuracy of the test.
Will drugs or alcohol affect the accuracy of a polygraph test?
Contrary
to what many think, the use of drugs and/or alcohol will
not assist someone to beat a polygraph test. Polygraph
examiners utilize certain procedures during a polygraph
test ensure that each person taking a test is responding
naturally throughout the testing procedure.
If
you are taking any medication you need to inform the polygraph examiner
prior to beginning the test. Physiological affects that drugs have on
people are immediately seen in polygraph chart tracings. Irregular physiological
recordings must be satisfactorily explained.
How long does a polygraph examination take?
A
professionally administered polygraph examination should normally take
between 2 and 3 hours to properly administer from start to finish. A professional
Polygraph examiner will go through several structured test phases to ensure
that it will work accurately. The pre-test phase, the test phase, and
the post-test phase. During these phases the examiner and the person taking
the test will become very involved in discussing the details of the test
and the manner in which the questions are presented Persons taking polygraph
tests often feel the need to fully explain their circumstances during
the pretest This is not discouraged by the examiner. The examiner should
also attempt to answer each question presented to him by the person taking
the test.
What questions will I be asked if I take a polygraph test?
Each
and every question to be asked a person taking a test
is discussed in detail with that person in the pretest
phase prior to the administration of any polygraph test
charts. No professional polygraph examiner will ask a
surprise or trick question on a polygraph test. It is
not only unethical for an examiner to ask a surprise question
but responses to these types of questions do not accurately
indicate truthful/non-truthful results.
Is the test confidential?
Yes,
the test is completely confidential between the examiner and the person
taking the test. The person taking the test may also elect to provide
the results to another person or persons.
Do I get the results of my test?
In
each case a polygraph examiner should always tell the person taking the
test how they did on the test. In cases where a person taking a test has
a problem in a question, the examiner should bring that problem question
to the attention of the person taking the test so as to give them a specific
opportunity to resolve that problem.
Do I set a written report?
A
written report including the relevant questions and the examiner’s opinion
will be provided upon request, usually with 24 hours.
How many questions will be asked?
The
number of questions that can be asked on a polygraph examination is limited.
The number of questions the examiner can ask will depend on the type of
test format used by the examiner.
Can a person’s general nervousness cause them to fail a polygraph test?
No.
Everyone who submits to a polygraph is nervous but for many different
reasons.
Innocent:
Although
most truthful persons believe they should pass a polygraph test, they
are often worried that something might go wrong. This doubt will cause
the person taking the test to experience a heightened sense of anxiety
about the test itself. This kind of nervousness is normal and has no
effect on the positive outcome.
Guilty:
Guilty
persons are nervous also, but for a very different reason.
The guilty tend to be afraid they are about to be exposed.
When a guilty person’s bad actions are exposed, that
guilty person will frequently suffer some negative consequence
as a result of having done that bad thing. Being nervous
about being exposed or about being punished for having
done something bad or wrong is also normal but it tends
to help expose the guilty and deceptive.
How
do I.....?
Setting
up a polygraph test
Contact our office by telephone or e-mail for an appointment.
What financial arrangements are available?
We
accept cash, certified funds and major credit cards Visa, MasterCard and
American Express.
Locate Behavior Testing and Forensics?
Telephone
or e-mail our office and directions can be forwarded to you or you may
access the Fayetteville North Carolina Chamber of Commerce at their web
site for an exact location.
Discuss a reason for wanting a polygraph test with the examiner?
You
may telephone or email our office at any time to discuss your situation
confidentially. Whether the test is conducted or not the discussion is
confidential.
Find out more about polygraph?
Go
to the Official American Polygraph Association (APA) Web site
About our other services?
A
general list of our services can be found here.
We have extensive experience in many areas of personal and commercial
security. In the past we have provided specialized security services for
state and federal courts in areas of Criminal and civil investigations,
Capital murder trial investigation defense preparation, strategy and consultation,
Jury selection consulting, witness coordination, forensic firearms technical
consulting, accident analysis and reconstruction, background investigations,
witness location, process service, surveillance, interview and interrogation,
commercial loss investigation and commercial employee loss prevention
audits.
To
discuss any of your specific needs please call or e-mail your requests.
Speaking engagements?
We
have been involved in numerous seminars and training sessions regarding
investigations, security, and polygraph topics. Speaking engagements are
tailored to suit special needs.
Want references?
A
list of references will be provided upon request. Please call or e-mail
today.
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