There's also the issue of access to studies. Try to look up studies on before/after rates of stuff like assault, breakins, etc on gun ban in Australia. VERY hard to get the real information, at least without someone's "analysis" (opinion) interjected. Looked into this a lot a while back, and that included when I had good friends in Australia's version of 2a movement. Just because one can't find studies, doesn't mean they don't exist. For Australia, they did exist, but were often buried. Or also lots of "experts" lined up to dispute the data, and that's before arguing the conclusions.