I think the mandatory reporting act now requires people to report to a police service, but it doesn't say which one. Proving that somebody didn't report to any police agency becomes a bit overwhelming. If it were only one, then there would be only one place you would have to check to see if the report had been made.
I agree with Andrew that it has to be staffed appropriately so that things don't sit there, and they do get passed on to the relevant police agency. From the prosecution side, it would simplify proving that a report wasn't made.