LOL!
An unverifiable test with zero credibility at all.
The only way you can tell if someone is lying when hooked up to a lie detector is if they tell you they are lying.
“The only way you can tell if someone is lying when hooked up to a lie detector is if they tell you they are lying.”
A polygraph test administered by a trained expert can reliably reveal if the subject is being “deceptive” which is arguably different from “lying.” A good friend of mine (now retired) was a branch chief in the CIA’s old Soviet Defense Analysis unit. He was polygraphed every six months, as were others in his branch. My friend claimed that the agency’s internal security people didn’t care much about the substance of your answers to their questions as long as you weren’t being deceptive about your answers.