Polygraphs Polygraphs are frequently shown on television shows, but they are rarely used in criminal

Polygraphs

Polygraphs are frequently shown on television shows, but they are rarely used in criminal cases to prove guilt because federal courts and many state courts prohibit the use of the results.

Do you think polygraph evidence should be used to prove guilt or innocence? Why or why not?

What challenges might a defendant raise to using it?

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