Is it a crime for dozens of people to beat four people?

Whether it belongs to the underworld or not lies not in the number of participants, but in whether the participants are the kind of underworld organizations. You belong to a criminal case. If you want a lawyer, you can go to Chongqing Zhihao Law Firm, which has been in business for more than 20 years. There are hundreds of lawyers in it and have handled many criminal cases. They are also very good at such cases and have a good reputation.