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Voice analysis helps police weed out lies

6:35 PM, Jan. 14, 2013
Manitowoc Police Detective Dave Vorpahl, left, demonstrates the computerized voice stress analyzer with Detective Dave McCue, who is talking into a microphone connected to the laptop.
Manitowoc Police Detective Dave Vorpahl, left, demonstrates the computerized voice stress analyzer with Detective Dave McCue, who is talking into a microphone connected to the laptop.
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When police question suspects and victims, they need to differentiate the truth from a lie.

They can do just that with the help of the recently acquired computerized voice stress analyzer, among the latest in lie-detector equipment.

"That's what a lie does not look like - it's what we call a Christmas tree effect," said Detective Dave Vorpahl, pointing to a computer screen in one of the Manitowoc Police Department's interview rooms. ...

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If you've ever answered "Who has the ball?" with "It's halftime," you might recognize The Airhead. Check out the characters in our cartoon gallery of oddball fans.

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