Lie Detectors
July 23, 2009
30 min
4.2/5
Season 7 - Episode 5: Lie Detectors
00:00 / 45:00
Overview
Polygraphs are used in thousands of investigations and job screenings. Can a machine really detect whether someone is lying? Penn & Teller will meet people whose lives were ruined by the faulty tests.
Episode Information
TV Show
Penn & Teller: Bull!
Season
Season 7
Episode Number
5
Air Date
July 23, 2009
Runtime
30 minutes
Rating
4.2/5
Guest Stars
Gabrielle Dennis