Nancy Guthrie’s family members have reportedly undergone polygraph tests as investigation deepens in the missing case.

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,” ...

Federal agencies have stepped up their efforts over the past few weeks to find potential leakers, and some — like the FBI, the Department of Homeland Security and the Department of Defense — are ...

Even if polygraph tests are not accurate, the threat of a test can serve as a deterrent or as an interrogation tool to elicit admissions. Leonard Saxe is a professor of Contemporary Jewish Studies and ...

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 ...

Five U.S. Democratic lawmakers called for an investigation into a series of escalating controversies surrounding ...

Anyone applying to become a minister in Madagascar’s new government will be subjected to lie detector tests to root out those ...

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” ...