Most people think polygraphs — also called lie-detector tests — can determine whether you're lying. But the technology has its critics. "The public needs to know that polygraph testing has no ...

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With prospective agents near the end of their screening process confessing to hideous crimes, Andrew Becker of the Center for Investigative Reporting asks about the thousands hired before the agency ...

Derry York, ex-cop and licensed polygraph examiner, offers this advice on his website: If you're going to lie, your best option is not to take the test. Don't waste time trying to learn how to beat ...

Karl Sander’s disputed polygraph test has been declared invalid after serious examiner errors emerged at the Madlanga ...