Polygraph tests can supposedly detect when a person is lying. But how can a machine do that, and can we really trust the ...

Attorneys for Christine Blasey Ford, the woman who's accused Supreme Court justice nominee Brett Kavanaugh of sexual assault, released the results of a polygraph test focused on the decades-old ...

King County Sheriff John Urquhart’s chief of staff failed a polygraph test required for his employment in 2012 and shouldn’t have been hired, a detective who reviewed the test results later concluded.

FALL RIVER — Polygraph examinations are not admissible at trial in Massachusetts because of concerns that the test results are not scientifically reliable. However, police detectives investigating ...

In this series on the polygraph, I’m reviewing some of the applications and issues of interest to security personnel considering polygraphs as a tool for pre-employment screening and in investigations ...

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 polygraph is not a lie detector but rather an instrument that measures a person’s physiological changes to questions posed by the examiner. An elevated physiological response to a particular ...

The CIA, the FBI and other federal agencies are using polygraph machines more than ever to screen applicants and hunt for lawbreakers, even as scientists have become more certain that the equipment is ...

Stormy Daniels was “truthful about having unprotected vaginal intercourse with Donald Trump in July 2006,” according to a polygraph test report from 2011. The report states that the “probability of ...

For as long as human beings have deceived one another, people have tried to develop techniques for detecting deception and finding truth. Lie detection took on aspects of modern science with the ...