There is also the risk that all is a trap and you incriminate yourself, even if you try to be anonymous there is a risk to make a mistake and leave a trace.
This is what's so mind boggling to me. Even if the criminal never provides their name or any identifying information they have to provide the name of their target. I'd imagine if the police told a victim someone tried to put a hit on them the victim would probably have a pretty good idea of the criminal's identity for the police to then investigate.
