Gun Laws matter: what is the relationship between the weakness of gun laws and gun death rates? The Law Center to Prevent Gun Violence has pulled together some data. They write: “Gun laws, however, vary widely from state to state. Some states, like California, have adopted a broad variety of important laws to prevent guns from falling into the wrong hands; many others, like Arizona and South Dakota, have adopted few or no good laws. In our 2012 edition of Gun Laws Matter, we have ranked all fifty states based on 29 policy approaches to regulating firearms and ammunition.” Here is one of their charts: The report can be found at: Law Center to Prevent Gun Violence The methodology for establishing the rankings can be found here: Point Assignment Methodology