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Pastimes : Murder Mystery: Who Killed Yale Student Suzanne Jovin?

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To: CJ who wrote (241)1/11/2000 3:03:00 AM
From: Jeffrey S. Mitchell  Read Replies (1) of 1397
 
I like your idea of a private polygraph test first. However, there is a possible downside. What if, after you announce you passed, you are asked "if you were so sure you could pass it, then why do it privately... were you afraid you'd fail?" How do you answer that?

Also, it seems the Supreme Court doesn't share your optimism about polygraph tests (from 4/1/98):

JUSTICES ALLOW BAN ON POLYGRAPH USE-"The Supreme Court ruled yesterday that state and federal governments may ban the use of polygraph evidence in court, declaring that doubts and uncertainties remain about the accuracy of the so-called lie-detector tests" (The Washington Post).
govexec.com

Psychologists don't particularly like them either:
shpm.com

Nevertheless, as it seems the tests err on the side of false negatives (i.e. they say someone wasn't lying when in fact they were), I still think it's a decent risk given your idea to first do one confidentially.

- Jeff
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