According to the query lawyer network, as long as the other party uses some deadly weapons or something that threatens the life safety of the person being beaten, the party being beaten can fight back. If someone is killed, it may be judged as self-defense; However, if the other party does not use some deadly weapons or threaten the life safety of the person being beaten, it is beyond the scope of proper defense and excessive defense.
Self-defense refers to the act of stopping the illegal infringement against the person who is committing the illegal infringement, causing damage to the illegal infringer. It belongs to self-defense and does not bear criminal responsibility. It is one of the reasons for breaking the law.