# What is your opinion on the Polygraph?

**URL:** <https://boards.straightdope.com/t/what-is-your-opinion-on-the-polygraph/409769>\
**Category:** In My Humble Opinion\
**Created:** [June 28, 2007, 3:02pm UTC](https://boards.straightdope.com/t/what-is-your-opinion-on-the-polygraph/409769 "2007-06-28T15:02:38Z")\
**Posts on this page:** 1\
**Page:** 3

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**Author:** ![Don\_t\_Call\_Me\_Shirley](https://avatars.discourse-cdn.com/v4/letter/d/f4b2a3/32.png) [@Don\_t\_Call\_Me\_Shirley](https://boards.straightdope.com/u/Don_t_Call_Me_Shirley)\
**Post date:** [July 3, 2007, 8:26pm UTC](https://boards.straightdope.com/t/what-is-your-opinion-on-the-polygraph/409769/41 "2007-07-03T20:26:07Z")

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Polygraphs are 100% reliable. They measure every heartbeat, every breath, every galvanic response.

Polygraph examiners are highly unreliable. There are a hundred ways for them to influence the outcome- they can make it say whatever they want.

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