A recent polygraph test taken in Orange County, Calif., has brought the validity of polygraphs — also called “lie detector tests” — into question. Even though some police departments and ...

NORFOLK, Va. — In the book "A Special Kind of Evil - the Colonial Parkway Murders," author Blaine Pardoe and his daughter Victoria R. Hester write about a man investigated during the disappearance of ...

The Department of Homeland Security has begun performing polygraph tests on employees to determine who might be leaking information to the media about immigration operations, according to four sources ...