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

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 ...

WASHINGTON – The federal government should not rely on polygraph examinations for screening prospective or current employees to identify spies or other national-security risks because the test results ...

Madagascar’s leader mandates lie detector tests for ministerial hopefuls in a bold bid to tackle corruption and rebuild trust ...