The polygraph schools are supposed to be teaching about countermeasures,” he said. “So teaching about countermeasures in and of itself certainly is not only not illegal, it’s protected.

Polygraph exams are commonly called "lie-detector tests" but experts say that's not true.

The use of the polygraph, and the nature of the questioning, is part of the F.B.I.’s broader crackdown on news leaks, reflecting, to a degree, the director's acute awareness of how he is ...

Sherri Papini's kidnapping hoax is explored in a new docuseries. Discover her claims, polygraph test, and the truth behind her disappearance and arrest.

Polygraph tests were also used by the Department of Homeland Security to identify potential leakers.

Border security is a top priority for Donald Trump, clearly given his campaign rhetoric and choices for top law enforcement and homeland security roles.

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. Is the test fair? Some local ...

A new study suggests that changes in gastric physiology perform better than standard polygraph methods in distinguishing between lying and telling the truth.