根据我国《刑法》的规定,精神病人在不能辨认或者不能控制自己行为的时候造成危害结果,经法定程序鉴定确认的,不负刑事责任,应当责令他的家属或者监护人严加看管和医疗;在必要的时候,由政府强制医疗。但是,现行的措施不能有效的防治精神病人的危害行为,必须通过综合的措施加以预防和控制。比如:明确受害人的正当防卫意识;及时报警,特别是严格强制医疗的出院标准。 According to the provisions of the Criminal Law of our country, a mentally ill person who causes a harmful result when he or she can not identify or control his behavior, and is not criminally responsible for criminal sanction as identified by legal procedures, shall be ordered by his family member or guardian to take strict care and medical treatment; When necessary, the government compulsory medical treatment. However, the current measures can not effectively prevent and control the harm of mental patients and must be prevented and controlled through comprehensive measures. For example: a clear awareness of the victim’s legitimate defense; timely warning, in particular, strictly compulsory medical discharge standards.