Police and intelligence agencies around the world have, for almost 100 years, used polygraphs as lie detectors to help convict criminals or find spies and traitors. But the polygraph could soon be defunct. Researchers in Britain and the Netherlands have developed a new method that has a success rate, in tests, of over 70%. This new method could be in use in police stations around the world within a decade. It doesn’t monitor facial tics, talking too much or waving of arms, which are all signs that someone is lying. The new method monitors full-body motion, which can show that the person is feeling guilty.
What does the new method of lie detection monitor that the polygraph does not?
Motions in the entire body Talking too much and arm waving Body responses to statements about events within a period of ten years Body temperature