Legal analysis: If it causes minor injuries or more, it is suspected of intentional injury. If they are not satisfied, they can be punished according to Article 43 of the Law on Public Security Administration Punishment (except for the normal sexual life of husband and wife or the voluntary participation of both parties)

If many people engage in SM, they are suspected of gathering promiscuity.

It may also be suspected of compulsory indecency and insult to women. If it is light, it shall be punished according to Article 44 of the Public Security Administration Punishment Law.

Legal basis: Article 43 of the Law of the People's Republic of China on Public Security Administration Punishment

Whoever beats another person, or intentionally hurts another person's body, shall be detained for not less than 5 days but not more than 1 days, and shall also be fined from 2 yuan to 5 yuan; If the circumstances are minor, they shall be detained for less than 5 days or fined for less than 5 yuan.

under any of the following circumstances, the offender shall be detained for more than 1 days and less than 15 days, and fined for more than 5 yuan and less than 1 yuan:

(1) beating or injuring others in a gang;

(2) Beating or injuring a disabled person, a pregnant woman, a person under the age of 14 or a person over the age of 6;

(3) beating or hurting others for many times or beating or hurting more than one person at a time.

Article 44 Whoever molests others, or intentionally exposes his body in a public place, if the circumstances are bad, shall be detained for not less than 5 days but not more than 1 days; Whoever molests mentally disabled persons, mental patients, people under the age of 14 or has other serious circumstances shall be detained for more than 1 days and less than 15 days.