According to your description, your son should be an active participant, and now he has been arrested. It is estimated that it will take at least one or two months for the investigation organ to complete the investigation and transfer it to the procuratorate for examination and prosecution, and then make a decision on prosecution. According to the criminal law, those who gather people to fight shall be sentenced to fixed-term imprisonment of not more than three years, criminal detention or public surveillance; Under any of the following circumstances, the ringleaders and other active participants shall be sentenced to fixed-term imprisonment of not less than three years but not more than ten years:
(a) repeatedly affray;
(2) affrays are large in number and scale and have a bad social impact;
(three) in public places or traffic arteries, causing serious social disorder;
(4) Armed affrays.
The first thing now is to see if we can reach a civil settlement with the victim, and then see if the circumstances can be suspended or detained after the settlement.