If you fixed the laws instead, so it would be a different level for crimes on the internet, there wouldn't be many people breaking the law. Make it legal to download and share intellectual property between individuals. No problem, no lawbreakers that you need to check up on.
It's like introducing a law that you can't go out between 12:00 and 12:01 every day and then say that you need to tighten down the streets with gates and armed guards, and have automatic locks on all doors that doesn't open outwards starting at 11:30, to protect people from breaking the laws.
Sadly, England might not be far from introducing license-only websites. (Scotland, why didn't you run while there were time?)