Instead of actually detecting lies, polygraph machines sense physiological variations, ostensibly brought on by guilt. The results are subject to interpretation, and therefore controversial. Join Josh and Chuck as they investigate the polygraph.
Josh and Chuck dive into the fascinating world of polygraph machines, tracing their origins from a 1920s Berkeley dorm theft case all the way to modern courtrooms. They explore how these "lie detectors" actually work by measuring physical responses like heart rate, breathing, and sweat, while examining the ongoing debate about their accuracy and reliability. The hosts also discuss the training of polygraph examiners, legal admissibility issues, and some creative methods people have tried to beat the tests.
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