Frequenty Asked Questions


1. How Accurate is a Lie Detector?
A "lie detector test", more correctly called a psychophysiological detection of deception examination (PDD) using a polygraph Instrument by a trained and licensed examiner, is significantly credible when properly administered in specific issue testing. Research by government intelligence agencies and independent university studies report polygraph accuracy at between 87 and 95 percent accurate. Recent studies regarding the guilty knowledge examination method show astounding statistical results, which can be verified by disinterested third parties.

Note: Like any other instrument used as an assesment tool to measure human physiology (mammograms, X-Ray, etc.) for the purpose of forming professional opinions, a polygraph instrument has limitations. A professionally trained examiner will understand this and stay within the scope of what a polygraph test can determine with high confidence.


2. Is the Polygraph Admissible in Court?
According to the federal rules of evidence and recent history of case law, polygraph results are not automatically excluded from certain types of court proceedings. As modern technology has improved and the utility of the polygraph are recognized, more and more judges are allowing expert testimony concerning examination results on a case by case basis. We must remember that in most cases the American Jury represents the fact finders in a court. The polygraph is an investigative tool that supports or diffuses suspicions and decisions made by authorities concerning specific issue.


3. What if I am Just Really Nervous?
This is not a problem though the examiner should work with you to reduce your anxiety before the in-test phase. The instruments measure response changes in pulse rates, respiratory patterns and skin surface conductivity relative to your current condition as a result of questions asked that are important to you. Any nervousness will be considered part of your base line and will not affect the outcome.


4. How Will I be Treated During the Exam?
Professionally trained polygraph examiners will use a non-accusatory (friendly) interview process. The examiner is trained to conduct the test in a fair and impartial manner. Professional examiners should spend as much time as you need in order to explain your position, agree on the questions to be asked in advance and for a clear understanding of how the polygraph works.


5. Who Can Take a Polygraph Examination?
There are many reasons for requesting a polygraph examination. Polygraph clients include attorneys on behalf of their clients, law enforcement officials and employers. Our clients also include individuals seeking help with private issues and/or family relationships.


6. When Will I Know if I Passed?
It is our policy to advise you immediately if you are having any difficulty with a certain question or issue. We will take the time to discuss this with you further and if necessary administer another short test (no extra charge) to see if you can resolve the matter. In any case, you will be advised of your results immediately after the examination is scored and a professional opinion is determined. Professional written reports are provided to requesters.


7. How Much Does it Cost?
The type of polygraph examination requested dictates the professional fee. Attorney client requested exams begin at $900.00 each plus additional fee for any court expenses. A domestic issue examination is usually only $300.00 each. Some discounts can be arranged in multiple testing or other circumstances. For specific fees for your type of request please click on our professional fees or call (972) 789-5175 for an appointment.