In Most Legal Situations, a Lawyer Cannot Introduce Evidence from a "Lie

In most legal situations, a lawyer cannot introduce evidence from a "lie detector." Why?

A) Polygraphs cannot detect autonomic nervous system activity.
B) Guilty people are incorrectly identified as innocent.
C) The polygraph only works under a high state of arousal.
D) The polygraph is not sensitive to changes in hormonal levels.
E) There is a high degree of false positives.

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