That is current practice, the problems are:
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送交者: silxirt 于 2012-12-15, 11:35:56:
回答: 比较靠谱的是联邦法律规范购枪的背景调查，有心理不稳定史的不能买枪 由 meiyou 于 2012-12-15, 11:25:42:
1. the check is not complete and reliable;
2. people change, mental problem is not always visible or can develop later
3. clinical symptoms do not always lead to criminal action, it makes sense to look back after it happened, but not practical when used to predict or judge if someone will commit a crime
4. bottom line: anyone can go crazy or fight for some course, it is matter of egg in hand or nuke in hand, you cannot prevent the action, but you can reduce the impact.
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