October 28, 2010 Add as a preferred source on Google Add as a preferred source on Google Polygraph tests often aren't admissible in court because they can't actually detect lies, but instead physical ...

The polygraph test has been used for some time for things like interrogating suspects and screening government employees and police officers, but the exact science behind the polygraph is not so ...

Not all security clearance applications require a polygraph, but when they are necessary, it helps to know what you're getting into. According to William Henderson, a retired federal clearance ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. The polygraph, historian Ken Adler wrote, has long been treated as ...