Although polygraph tests involving national security are supposed to be about a handful of questions involving espionage, Zelicoff said the tests take hours: "In each and every test, what happens is ...

The polygraph, known more commonly as the “lie detector,” has a long and controversial history as a forensic tool, but it has also been used in a variety of other contexts, including employment ...

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 ...