Capital punishment for pedos?

OF COURSE a pedo should be shot on sight by the victim’s dad when caught in the act, but sadly, victims of pedophilia oftentimes don’t know what’s going on for years and kids won’t accuse them until much later, maybe even adulthood. That’s the most common way we find out about these predators, by far.

So in that situation, what should ancapistan residents do about a pedo who once did the evil deed and may be still doing it today? Banishment? Beheading? Castration? And by what authority?