1. Even if the other party strikes first and fights back, the other party is slightly injured. In this case, the evidence is conclusive, and it is necessary to find a lawyer to watch the monitoring and master the evidence;
2. In China, self-defense is legal. In order to protect the personal and property safety of oneself or others, those who take necessary measures to stop the infringement and cause damage to the infringer shall not bear criminal responsibility, but they must have evidence.