Add Yahoo as a preferred source to see more of our stories on Google. This undated booking photo released by Johnson County Sheriff's Office shows Nicholas Bridgmon. The Nebraska sheriff's deputy ...

A Houston polygraph operator who uses his skills to keep convicted felons in line will make his nationwide television debut next month on the Dr. Phil talk show, using his machine to help the TV ...

Bill Marshall believes he’s pretty good at reading people’s body language and personality, but it’s in his analysis of polygraph data where he is more certain whether or not a person is being truthful ...

Doug Williams is a former Oklahoma city cop, and one of the most vocal critics of the polygraph test in the U.S. He says he's administered thousands of tests, including some for the FBI and the US ...