Covers Introduction, Terminology, Case Preparation, and Construction of the Concealed Information Test and the Peak of Tension Examination Techniques.
The Concealed Information Test (AKA Guilty Knowledge Test) is a lesser-known PDD method, with special capabilities not shared by either the Comparison Question Techniques or the Peak of Tension test.
Peak of Tension (POT) tests have been used since the beginning of polygraphy, and continue to be helpful in some polygraph cases. For most polygraphers, the POT is conducted after a CQT has indicated deception, to confirm the finding or to help investigators search for evidence.
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