Early in Aggravated there is a scene where a sheriff’s deputy interrogates Steve, and tells him he knows Steve is lying because he had been tracking Steve’s eye movements. Steve has a glass right eye, so he took off his glasses, tapped the right eyeball with his fingernail, generating a clacking sound, and said, “Which eye were you looking at?” The deputy ended the interview.
Lie detectors aren’t allowed in court, nor are a number of other tests. Why? Because they’re unreliable. Here’s an article about recent attempts to determine truth using lasers and radar.
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