A professional polygraph examination sometimes referred to as Psychophysiological Detection of Deception or PDD is commonly called a Lie Detector Test. We believe a better term is “Truth Verification”.

The process begins with a friendly low profile interview in which the issues at hand are discussed in a frank non-accusatory manner. All of the questions that will be asked during the in-test phase (using the instruments) will be developed and reviewed at this time. There are no surprises in a professional polygraph test.

The instruments measure various involuntary physiological reactions that occur during the in-test phase. There are a lot of checks and balances built in to the process. For example the same question will be asked more than one time and in a different order.

Texas Polygraph Counselors use 21st Century computers with special chart analysis software and the latest in peer reviewed testing templates developed by the Department of Defense agencies and recommended by the American Polygraph Association.