ExclusiveSarasota Sheriff's Sgt. Kevin Pingel Talks Polygraphs
Kevin Pingel, a retired Sarasota County Sheriff's sergeant, talks about the ways a polygraph can be useful — and the ways it can sometimes be tricked by suspects.
Season 3 Episode 2 - Videos
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Sarasota Sheriff's Sgt. Kevin Pingel Talks Polygraphs
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