1. Invite both parties to the police station and ask the ins and outs of the matter; If both sides are not injured, they will be released after education; If one party is injured, negotiate medical treatment and compensation and other aftermath matters;
2. Write down the contents of the conversation and negotiation, and ask both parties to check and confirm their signatures;
3. If the injured person is suspected of a criminal offence, he shall be sent to the detention center for custody.
legal ground
Article 9 of the Public Security Administration Punishment Law
If the circumstances are minor, such as fighting, damaging other people's property and other acts in violation of public security management caused by civil disputes, the public security organ may mediate. If the parties reach an agreement through mediation by the public security organ, they will not be punished. If the mediation fails to reach an agreement or fails to perform after reaching an agreement, the public security organ shall punish the violator of public security administration in accordance with the provisions of this law, and inform the parties that they can bring a civil lawsuit to the people's court according to law.