Even if they were prepared for cyber crime, would they be prepared to act on information you give them? Sure, if you supply law enforcement with the location of your recently stolen electronic device they will go after it (as I've had them do twice now). That's pretty straightforward. On the other hand if you give them the details of some purported fraudster, of whom you are not even a victim, a thorough investigation would be necessary prior to any action on their part. At least I'd hope so, otherwise there's a whole new genre of swatting (i.e. framing unsuspecting victims as black hat hackers) that has yet to be exploited.
I'm just concerned if they have the technical know-how of doing it. I mean yeah what you said is right. The proof. Otherwise going after someobody who might be innocent.
You should go ahead and call your local police department. Chances are that they don't deal with cyber crimes unless you live in a large city (or if your city contracts with a larger police department).
There's also the issue of jurisdiction. If the crime is originating across some border (which more than likely it is), there's probably not much they're willing to do about it.
