Karl Sander’s disputed polygraph test has been declared invalid after serious examiner errors emerged at the Madlanga ...

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 ...

The Department of Homeland Security has begun administering polygraph tests to employees in an effort to identify those leaking information about immigration operations to the media, according to four ...

WASHINGTON – The federal government should not rely on polygraph examinations for screening prospective or current employees to identify spies or other national-security risks because the test results ...

The Madlanga Commission of Inquiry reveals serious errors in polygraph tests of KwaZulu-Natal Hawks officers involved in a ...

Although polygraphs (“lie-detector” tests) are considered too unreliable to be admissible in federal and most state courts, physicians are often being forced to submit to them in physician health ...

Alex Murdaugh failed a polygraph test administered as part of the plea agreement for the disgraced former attorney's raft of financial crimes, violating the deal, which required his truthfulness, ...