The polygraph is not a lie detector but rather an instrument that measures a person’s physiological changes to questions posed by the examiner. An elevated physiological response to a particular ...

The results of a lie detector can sometimes be confused by medical conditions, anxiety levels, or natural body differences.

The Department of Homeland Security has begun performing polygraph tests on employees to determine who might be leaking information to the media about immigration operations, according to four sources ...

If you’ve ever wondered whether or not Ariana Grande has had any work done to her face and/or body, she’s got some answers for you — and she was delighted to be able to give them while hooked up to a ...

The results of Katie Ginella's lie-detector test on The Real Housewives of Orange County marked a major turning point for the group — and sparked several emotional reactions in the process. After ...

Alex Murdaugh failed a polygraph test administered as part of the plea agreement for the disgraced former attorney's raft of financial crimes, violating the deal, which required his truthfulness, ...