“The polygraph has been weaponized and is being used against individuals who have never had a polygraph requirement, whether pre-employment or security, in their entire federal careers,” said Mark ...

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 ...

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Republican Sen. John Kennedy of Louisiana sarcastically remarked during a Saturday night appearance on Fox News that Vice President Kamala Harris could cause a polygraph machine to blow up by simply ...

An early form of lie detection existed in India 2,000 years ago. Back then, a potential liar was told to place a grain of rice in his mouth, and chew. If he could spit out the rice, he was telling the ...

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, ...

Gary Coleman’s ex-wife has failed a voluntary lie detector test about the circumstances surrounding his death. The polygraph examination was conducted as part of an ongoing investigation into the ...

A version of this story appeared in CNN’s What Matters newsletter. To get it in your inbox, sign up for free here. When President Ronald Reagan’s White House threatened thousands of government ...