Research is identifying alternative methods to the polygraph, but some doubt whether true lie detection is possible.

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 ...

Even if polygraph tests are not accurate, the threat of a test can serve as a deterrent or as an interrogation tool to elicit admissions. Leonard Saxe is a professor of Contemporary Jewish Studies and ...

SALT LAKE CITY (KUTV) — Police call lie detector tests an effective tool. However, one lawmaker doesn’t want police to use them on sex assault victims in Utah ever again, even if the victim wants it.

When you think of polygraph examinations, crime comes to mind. But the tests are being used to fish out potential cheaters in a Connecticut-based bluefish tournament. Stream Connecticut News for free, ...

Federal agencies have stepped up their efforts over the past few weeks to find potential leakers, and some — like the FBI, the Department of Homeland Security and the Department of Defense — are ...

A Tribune-ProPublica investigation found that one man felt compelled to drop his sexual assault complaint against his ...

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 ...