Body of evidence - polygraph testing

In use for over 100 years, disparaged by many fraud investigators, lie detectors continue to undergo innovation. So, really, do they, can they work - how well, at all? Paul Cochranewants to know.

In use for over 100 years, disparaged by many fraud investigators, lie detectors continue to undergo innovation. So, really, do they, can they work - how well, at all? Paul Cochranewants to know.