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.
RE: Polygraph Alternatives: “Eyedetect” – Your Eyes Are Telling Lies