What are polygraph countermeasures?
A. “Polygraph countermeasures” refers to methods used to pass or beat the polygraph. While countermeasures may be used by deceptive persons who wish to beat the polygraph, they can also be used by truthful persons to protect themselves against the all-too-common false positive result. For a full explanation of how to employ countermeasures, see Chapter 4 of The Lie Behind the Lie Detector.