The Federal Bureau of Investigation (FBI) has found itself embroiled in a rather odd situation involving polygraph tests. In April, it confirmed to NPR that it was using these tests to catch personnel ...

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 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 ...

CLEVELAND, Ohio - In Hollywood, polygraph machines help dogged detectives sort through the lies and get to the truth. For Northeast Ohio law enforcement agencies, the reality is much different. Many ...

Leonarde and Katherine Keeler pose with the Keeler Polygraph machine, 1935. Courtesy Everett Collection. This article is the first in a series called A Thousand Words, where we feature an interesting ...

Malfunctions in polygraph equipment operated by the Pasco County Sheriff's Office date to July 1990, according to records released by sheriff's officials Thursday. The records, released at the request ...

A creepy sex cult leader kept a polygraph machine in the New Jersey home where he is accused of manipulating Sarah Lawrence College students, a prosecutor revealed Tuesday. Assistant U.S. Attorney ...

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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 ...