“Also you would probably need a poly if not a life style polygraph where they ask you very intimate private details.”
They don’t like to you to say you are going for a polygraph. It’s an “interview”.
And yes, they WILL find out every naughty thing you have ever done.
They have a conversation with you where they ask if you’ve ever done this or that, like robbed a bank, etc. Then they strap you in and ask “Other than what you have already told me, have you ever done anything wwrroonngggg?
Well, these days nothing is wrong. It’s just an alternate lifestyle. So, you just need to squeeze your sphincter and believe, just like Peter Pan.