Throughout history, there has been an intrinsic need for humans to detect deception in other humans. Developed in 1923, the polygraph machine was a tool designe

Though polygraph has been the mainstay for government and police departments since World War II, it has undergone substantial transformation in recent years. Fu

The polygraph, often portrayed as a magic mind-reading machine, is still controversial among experts, who continue heated debates about its validity as a lie-de

Carefully and succinctly explores polygraph law, history, and science. For related material, see Hein Item #327060.