What are “countermeasures”?
The unauthorized and undisclosed use of drugs, alcohol, subtle movements, self induced pain or conflict and mental gymnastics are all considered countermeasures. Countermeasures do not help an examinee taking a polygraph change the final result. Instead, competent well-trained polygraph examiners are trained to look for the tell tale indicators of attempts to alter the appearance normal physiological activity in the body, which makes for a conclusive finding of deception.
