Agreed. In the inner city of Sydney I witnessed my neighbor reverse into my girlfriends car, she also heard the loud crunch from inside our house. He took off and the next time I saw his car the damage that should have been there had miraculously disappeared. He is a sign writer and very handy with paint.
I called the cops who came. I got out the tape measure and showed all the damage on my girlfriends car lined up perfectly with the rear chasis rails and tray of his work ute, I told them we both witnessed it, I showed them the impact points on his car had fresh paint on it and they said without independent witnesses we did not have a case against him and that they could not see how I concluded it was his car that hit mine! I nearly fell over.
I told them that they weren't prepared to do anything I'd talk to him and sort it out myself. They reluctantly agreed to talk to him when they knew I was serous and guess what, he admitted it. Even after admitting this they still did not want to write a report which they still haven't. One cop who looked like he was just out of nappies was obviously a quite thick, not his fault i guess, but the older one calling the shots just couldn't be bothered. If it happened again I wouldn't call them, absolutely no point. If I ended up with an assault claim leveled against me from the neighbor, I be confident with these two muppets hot on the case not a thing would happen to me. Pathetic.

