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 ...

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 test has been used for some time for things like interrogating suspects and screening government employees and police officers, but the exact science behind the polygraph is not so ...

FARGO - Rollie Rust admits he wasn't a big believer in lie detectors before he went to polygraph testing school. But after more than three decades of quizzing suspects and other subjects for ...

ST. PAUL - It is well-known that polygraph testing - the infamous “lie detector” test - is not allowed as evidence in courtrooms because the tests generally are not reliable. But many convicted ...