It is a tool of truth for investigators and defense attorneys, but not prosecutors. Laws restrict the use of polygraphs on employees and bans lie detectors from court. It may be futile, but it is ...

Unfortunately, dishonesty or honesty via polygraph can be easily manipulated by the machine operator. I have experience with the machines as part of criminal interrogations training, I have witnessed ...

A former Oklahoma City police officer was federally indicted for training people to beat a lie-detector test. Government prosecutors said he was obstructing justice by helping people conceal crimes.