Spotting Lies: Listen, don’t look
Forget what you’ve learned from years of watching cop shows on television. Liars do not have trouble making eye contact. The guilty don’t fidget. Culprits don’t sweat more. As a matter of fact, research indicates that innocent people tend to be more nervous when they are being questioned because they are very intent on proving that they didn’t do it. Liars come in with a script in their heads.
“A lot of different signs of anxiety are mistaken for signs of deception,” says Kevin Colwell, a forensic scientist at Southern Connecticut State University in New Haven. He says research shows that even for the innocent, the whole tenor of an encounter with police can make it harder to remember things accurately. “In interrogation the whole goal is to convince somebody or trick them or coerce them whatever it takes to get them to confess to the crime.