How Do Lie Detectors Work?

They’re notoriously unreliable, but continue to be used in criminal investigations.

how do lie detectors work
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  • Photo Credit: Wikipedia

Family Annihilator Chris Watts

how do lie detectors work
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  • Photo Credit: Netflix

Serial Killer Gary Ridgway

how do lie detectors work
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  • Photo Credit: Wikipedia

Serial Killer Dennis Rader

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  • Photo Credit: Alchetron

Child Killer Lloyd Lee Welch

how do lie detectors work
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  • Photo Credit: FBI.gov