In Idaho, the common law castle doctrine has always been in force. As has the common law stand-your-ground doctrine. Unlike some other states, our courts have not attacked the presumption of these common law rules. But our legislature did enact one good piece of legislation, that the courts had started messing with. If you shoot a person and the shooting is deemed self-defense, no civil charges may be brought against you. Additionally, if civil charges have been filed against you, before the official ruling and your are later cleared of any criminal wrongdoing, then the plaintiff must pay your attorney fees and the civil suit will be dismissed.
This is what should be expected of our legislatures. Don't pass unnecessary laws, but those that are passed, allow them to have some teeth! Sadly, this type of thing is rarely done, even in Idaho.