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I read both How To Sting The Polygraph and The Lie Behind The Lie Detector. I found both to be very informative with a great deal of overlapping information with regard to how a polygraph interrogation is conducted and the appropriate use of countermeasures. There is no contradicting advice as far as I can tell... I think one would be very well equipped reading just the free book, The Lie Behind The Lie Detector. I would also recommend you read the Department of Defense Polygraph Institute Interview and Interrogation Handbook.

Knowing how interrogations are conducted and how your polygraph interrogator may both try to intimidate you and elicit damaging admissions, as well as body language he will deem as indicitave of a deceptive person will only help you. Knowing beforehand how he deems responses to his lies (if he challenges your charts) as either indicative of guilt or innocence will help you turn the tables and remain in control. Good luck, let us know how it goes,

BT