WHAT DOES THE POLYGRAPH TESTING PROCEDURE INVOLVE?
Most polygraph examinations last between two-and-a-half and three hours, but the examinee is only attached to the polygraph instrument 40 to 45 minutes. The typical polygraph examination involves three separate phases. The PRE-TEST PHASE takes up most of the time. During this phase the polygraph examiner completes all the miscellaneous paperwork and provides the examinee with an introduction to the polygraph instrument and all components. Then the examiner and the examinee will review and thoroughly discuss the test issue (reason for the polygraph test) during which time the examinee will tell the examiner what he or she did or did not do. Prior to attaching the examinee to the polygraph instrument all test questions are reviewed with the examinee, word for word. There are no surprise or trick questions asked. During the CHART COLLECTION PHASE the examinee is attached to the polygraph instrument. The examinees psycho-physiological responses are recorded as the examiner asks each questi
