In our country, illegal gun holding is prohibited by order. No one is allowed to hold a gun illegally, and illegal gun holding will be punished by law. If someone kills someone with a gun in defense, it is usually over defense, and will be sentenced according to the crime of intentional homicide. If illegal gun defense is over defense, criminal responsibility should be investigated according to law. According to the consequences, indirect intent and excessive defense should be convicted and punished as intentional homicide.
 Article 20 of the Criminal Law stipulates that an act taken to stop an unlawful infringement in order to protect the interests of the State, the public, the person, property and other rights of oneself or others from the ongoing unlawful infringement, which causes damage to the perpetrator, is justifiable defense and does not bear criminal responsibility.