Add Yahoo as a preferred source to see more of our stories on Google. American inventor John Larson, right, demonstrates the operation of a polygraph at Northwestern University in Evanston, Illinois, ...

Jerry Lewis, a retired New Jersey State Police lieutenant who has been administering polygraphs since 1981, joins host Matt Adams to peer inside the mechanics of the test. They explore the science at ...

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 ...

In the course of the committee’s work, we reviewed some material on the origin and history of polygraph testing. Some of this material is presented here because it provides interesting context and ...

State investigators decided against bringing charges against a Midlands mayor over an alleged assault, even as Chapin Mayor Bill Mitchell potentially failed a polygraph test when questioned about the ...