Yes, indeed. But thankfully the polygraph finds is best use in Post-Conviction Sex Offender cases which prevents these criminals roaming your streets and claiming more victims.
Sadly in the past 100 years the polygraph has been used by a lot of incompetent police officers who had no idea what they are doing with it and it owes it's bad renomee to them.
And how does it do that?
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In the States every sex offender on probation has to take a polygraph test regarding whether or not they had similar sex acts/offenses similar to their crimes. If they fail the test, they go back to prison.
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