Lie Detectors Tell Lies : The Unreliability of Polygraphs Used in Criminal Trials and Investigations Polygraphs, commonly known as lie detector tests, are in question to whether or not they are realiable enough to use in court cases. The common test used in criminal investigations is the Control Question Test (CQT) . The CQT works by comparing physiological disturbances that occur when questions are asked which are relative to the crime in question. Vague control questions are …showed first 75 words of 1297 total…

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