My wife and affair partner are now in a criminal investigation because he has been molesting my daughter, beating my son and threatening to kill them before an interview with detectives. They deny the relationship and I need to get a PI to prove it and damn their testimony. He moved in the week I moved out. I’m pretty keen on their movements but don’t want to risk a trespassing charge or something.

I live in NC and have set out 5 grand to hire one. Those of you that used a Private Investigator, how much did it cost? (In case I need to get more $)

Was it successful? If so why?

Was it unsuccessful? If so why