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 ...

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 ...

Nova Scotia's Royal Canadian Mounted Police (RCMP) announced on Wednesday that investigators have conducted polygraph interviews as part of the effort to determine what happened to Lilly and Jack ...

The results of Katie Ginella's lie-detector test on The Real Housewives of Orange County marked a major turning point for the group — and sparked several emotional reactions in the process. After ...

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 ...