This is false. Polygraph tests do not detect lies.
The polygraph is pseudoscientific snake oil, used to perpetuate fear.
Being told by the IC it will be reviewed by a judge is not reassuring.
They cannot effectively prohibit something they cannot detect. The polygraph being inaccurate pseudoscience means that they can't exercise the control that they pretend and purport to, as they simply cannot reliably determine if someone is being truthful or not.
Additionally, due to its inaccuracy, it makes the whole process wickedly unfair.
Who would want to work for an employer that gates your success as a team member on pseudoscientific nonsense?
What they do is use it as a tool against you to try to force a confession. It's absolutely a bluff on the part of the interviewer, and they know it.
What they'll do is sit you down after the "results" come in and say: "hey, we both know you weren't 100% truthful during the test, the results clearly indicate you lied during key parts of the interview. Is there anything you'd like to tell us?"
I cannot stress enough that the actual results of what the polygraph say are not factored in whatsoever.
This can't be asserted a priori.