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July 24, 2014

Polygraph Expert Explains Why You Shouldn't Lie on TV (VIDEO)

by Alex Moaba, posted Jul 20th 2011 4:45PM
Chances are, if you've seen a TV lie detector test quickly escalate into an all-out melee, John Grogan provided the science that caused the spark. Grogan is a polygraph examiner who's become a regular on the TV circuit, lending his lie-detecting expertise to 'Survivor,' 'Nancy Grace,' 'Divorce Court,' 'Tool Academy,' 'Flavor of Love,' and a bevy of other shows.

In this video from the AOL You've Got series, he talks about just how accurate the lie detector test results you see on TV are, and what he's come to expect right after he delivers his results.

"Usually when we do relationship testing we'll ask the accuser to leave the room," he says. "You'll have somebody see their spouse either confess to something or fail badly on a question, and they'll come and slap or punch that person."

Clearly this is a man with much wisdom to dispense. Check out the video after the jump.

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