If a police police officer or any officer of the federal bureau of investigation, etc. enters your home and finds Nuclear Weaponry, A group of terrorists, or Plans for striker missles, etc. He may not do anything unless he has a warrant. Also, If someone robs your house, you can only shoot them in the front of their body, because If you see shoot the back of them, that means they weren't coming to you. If someone robs you, make sure that if you shoot them its in the chest or the face. Also, anyone who enters your house without permission you have the right to shoot them, but again, only in the front of their body.
[Edited on 11.24.2010 7:37 PM PST]