line in the sand

A castle doctrine, also known as a castle law or a defense of habitation law, is a legal doctrine that designates a person’s abode or any legally occupied place for example, a vehicle or home, as a place in which that person has protections and immunities permitting one, in certain circumstances, to use force up to and including deadly force to defend oneself against an intruder, free from legal prosecution for the consequences of the force used