People have faith in the ability of polygraph machines (more commonly known as lie detectors) to help police find the truth in criminal investigations. In reality, most polygraph tests are done for government security screenings, even though this has been outlawed in the private sector. According to a report from National Academy of Sciences, that's the most unreliable use for them.
Daily Poll: Do you trust polygraph machines enough to submit to one for a job interview?
- I don't trust them and wouldn't submit to one.
- I don't trust them, but would submit if that's the only viable option.
- I trust them and would submit to one without question.
- I don't know / don't care.
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They are very unreliable. I personally have successfully lied to one just to show that it is entirely a matter of your state of mind while taking one.