Polygraphs
The Psycholgical Stress Evaluator (PSE) has been around since the 70's. It's effectiveness can be in the 90's, (100% with a good operator). Nowdays, all it takes is a laptop with a program and a mic - of course the program cost $10,000, but only takes 6 days of training.
Polygraph guys and PSE guys don't like each other much.
I've taken both Polygraph and PSE.
I can control my heart rate and blood pressure fairly well and can feel nervous during the control questions, (is your name Herman Munster?), so the Polygraph is usually inconclusive for me.
I took the PSE during a demonstration and the operator was very proud of both the PSE and his ability to get 100%. I bet him a buck I could beat it. He got happy, had me sit down and asked me the same control question they all do - Is your name.....? He looked kind of confused and asked to check my ID and still couldn't figure out why the results of the control were wrong.
I told him he better ask me if I was adopted.
Of the two, I'd hate to take the PSE if I was guilty of something.
One of the times I was in a small interview room, the guy hooked up small recorder and told me he was going to record us just for the notes, I didn't let on until after the interview that I knew what he was doing because the recorder had 4 different cables attached to the wall. He just laughed but didn't admit what it was.







