But how exactly does this machine work, and is it really as accurate as polygraph examiners claim? To find out, we decided to put the polygraphs to the test ourselves. Polygraph results haven’t ...

But how exactly does this machine work, and is it really as accurate as polygraph examiners claim? To find out, we decided to put the polygraphs to the test ourselves. Polygraph results haven't ...

Polygraphs have been used around the world ... But for those who don't have a qualified questioner to hand - what methods can work? "You might put a tack in your shoe which will cause, for ...