Do you have any evidence of any kind that the kids didn’t tell anyone, or is that an assertion which you pulled out of thin air?
Often kids tell and are not believed.
In other cases their lives are threatened and they believe the threat. You make it pretty clear that in your little world an adult police officer with a belt full of weapons wouldn’t seem threatening to a teenager, and probably being put unconscious by a sleeper move or being tazed wouldn’t either.
In the real world though, these are the kind of things that allow sexual predators to continue.
My little world? GFY