It's quite common knowlege anyway. There is a very easy way though to pinpoint the location. The ISP has the account holder details and the logs to proove it. That's how they nailed so many vuze/torrents downloads in the US last year. The Hurt Locker producers went all the way for the jugular. Subpoenaed over 5000 individuals and flogged them with massive fines. But the law is different in the states. I think under Australian privacy laws an ISP is not required to provide private details about its customer base and that's where the problem is. But it's all there and I doubt the police would be stopped from investigating this further so these people need to know they are on borrowed time. Bottom line is that they'll get them. Too late now.