Though I do agree that the police are of little help when they guy is in fact inside your house, there is a lot that can be done before that. Strengthening the police would mean a clean up of the streets, and more criminals in jail, less in your homes.
I personally feel that you guys have stretched that "defending yourself" a bit too far as well. It`s one thing to protect yourself if your life or others is in fact in danger, and another thing to go shooting at someone for taking your TV. We had a thread on here about a year ago about a burglar running from a house and he was shot or stabbed in the back on his way out of the property by the owner. Don`t remember the details precisely, but it was along those lines. Where I come from, and to my belief, that shouldn`t be called self defence. There was an American attourney on her though that could tell me that that was clearly within the borders of self defense according to American Law.
Not saying that that`s wrong per se, but something I definitely disagree with anyway.