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

Add Yahoo as a preferred source to see more of our stories on Google. A recent polygraph test taken in Orange County, Calif., has brought the validity of polygraphs — also called “lie detector tests” ...

First of all, what is a lie detector? It’s also known as a polygraph test. In movies and TV shows, it is used to decide if a suspect is innocent or guilty. But it’s not quite that simple. Recommended ...

Polygraph test results are also generally inadmissible in federal courts and in most state courts because of doubts about their reliability. Statements or admissions made by test subjects during a ...

The Department of Homeland Security (DHS) is using polygraph tests to figure out who could be leaking information to news outlets, with some agency officials contending the disclosed information has ...

Add Yahoo as a preferred source to see more of our stories on Google. (NEXSTAR) — A recent polygraph test taken in Orange County, more specifically, on Bravo’s “The Real Housewives of Orange County,” ...