What should I do if my friend is criminally detained for distributing obscene materials for profit?

Your friend is suspected of committing the crime of distributing obscene materials for profit and should be held criminally responsible in accordance with the law. Whether the police apply to the procuratorate for approval of the arrest depends on the specific circumstances of the case. If it constitutes a criminal offense, it will be transferred to the procuratorate for review and prosecution after the police investigation is completed. If the police violate the rules, they will also be held accountable. Your friend's family difficulties are not grounds for immunity from criminal punishment. I can only advise your friend to actively plead guilty and repent, cooperate well, and strive for a lighter punishment from the judicial authorities.

Related articles: Article 363 of the "Criminal Law": For the purpose of profit, it is a crime to produce, copy, publish, sell, and disseminate obscene materials; it is a crime to provide book numbers for others to publish obscene books and periodicals for profit. Whoever produces, copies, publishes, sells or disseminates obscene materials for the purpose shall be sentenced to fixed-term imprisonment of not more than three years, criminal detention or surveillance, and shall also be fined; if the circumstances are serious, he shall be sentenced to fixed-term imprisonment of not less than three years and not more than 10 years, and shall also be fined; In particularly serious cases, the offender shall be sentenced to fixed-term imprisonment of not less than ten years or life imprisonment, and shall also be fined or have property confiscated.