According to the Criminal Procedure Law
Article 83 When a public security organ detains a person, it must produce a detention permit.
After detention, the detained person shall be immediately sent to the detention center for custody, and shall not exceed twenty-four hours. Unless it is impossible to notify or the notification of suspected crimes endangering national security or terrorist activities may hinder the investigation, the family members of the detained person shall be notified within 24 hours after detention. After the circumstances that hinder the investigation disappear, the family members of the detained person shall be notified immediately.
Article 84 The public security organ shall interrogate the detained person within 24 hours after detention. If it is found that it should not be detained, it must be released immediately and a release certificate will be issued.
Article 84 The public security organ shall interrogate the detained person within 24 hours after detention. If it is found that it should not be detained, it must be released immediately and a release certificate will be issued.
Extended data
After detention, the family members of the detainee or their units shall be informed of the reasons and places of detention within 24 hours, except in cases where the investigation is hindered or notification cannot be made.
Article 84 of the Criminal Procedure Law: The public security organ shall interrogate the detained person within 24 hours after detention. If it is found that it should not be detained, it must be released immediately and a release certificate will be issued.
Article 96 If a case of detaining a criminal suspect or defendant cannot be settled within the time limit of investigation, detention, examination and prosecution, first instance and second instance as stipulated in this Law, the criminal suspect or defendant shall be released; If it is necessary to continue verification and trial, the criminal suspect or defendant may be released on bail pending trial or under residential surveillance.
Article 97 A people's court, people's procuratorate or public security organ shall release a criminal suspect or defendant after the expiration of compulsory measures, obtain bail pending trial, place him under residential surveillance or change compulsory measures according to law. When the statutory time limit for the people's court, the people's procuratorate or the public security organ to take compulsory measures expires, the criminal suspect, the defendant and his legal representative, close relatives or defenders have the right to demand the cancellation of compulsory measures.
References:
China Court Network: Criminal Procedure Law