The search for a foolproof method of lie detection has a “long history,” said Richard Leo, a professor of law and psychology at the University of San Francisco School of Law and an expert on interrogation practices. “The search for some way to be able to read body language, demeanor, vocal pitch, gestures and then infer with a high degree of accuracy whether someone is telling the truth.” It just doesn’t exist, he said. He likens many of the claims about human lie detection to claims of psychic ability. “This reminds me of psychics and the lottery. If there was a psychic and they could see what the lottery numbers are, that would just be gold, right? Why wouldn’t they win $400 million when the Powerball is up there?”
Hellbound and Down 