Missourians would be allowed to use deadly force to defend themselves from intruders in their cars as well as their homes under a measure passed by the House on Monday.
The bill, called the "Castle Doctrine" after a concept in English common law, also would protect home and car owners from civil lawsuits if an intruder is killed or wounded.
Twenty-five states have similar legislation. Deadly force is justified under Illinois law if there is a reasonable expectation of bodily harm.
Under current state law, Missourians can defend themselves with a deadly weapon only if they feel threatened, or to prevent arson or burglary, or to protect someone else from injury or death.
http://www.stltoday.com/stltoday/news/stories.nsf/missouristatenews/story/690B814E9F3D8AD68625728800185BC7?OpenDocument