According to the provisions of the Criminal Procedure Law of China, the public security organs have the right to detain a flagrante delicto or a person suspected of committing a crime, pending further investigation. After being detained, the public security organ will take the suspect to the police station and other places for interrogation within 24 hours. If there is a major criminal suspect, the public security organ will send the suspect to the local detention center for custody within 24 hours, and then conduct further investigation. After detaining a criminal suspect, the public security organ shall notify the criminal suspect's family within 24 hours after detaining the criminal suspect, except in two cases where the suspected crime of endangering national security or terrorist activities may hinder the investigation. The detention notice is the basis for family members to send clothes and living expenses, and it is also the material for defense lawyers to provide legal help. If you don't receive the detention notice, you can apply to the local police station for inquiry, or ask the public security organ in the place where you are detained.
legal ground
Criminal Procedure Law of the People's Republic of China
Article 91 If a public security organ deems it necessary to arrest a detained person, it shall, within three days after detention, submit it to the People's Procuratorate for examination and approval. Under special circumstances, the approval time can be extended by one to four days.
For major suspects who commit crimes on the run, commit crimes many times or commit crimes in collusion, the time for submitting for examination and approval may be extended to 30 days.
The people's procuratorate shall, within seven days after receiving the approval letter from the public security organ, make a decision on whether to approve or disapprove the arrest. If the people's procuratorate does not approve the arrest, the public security organ shall immediately release it after receiving the notice and promptly notify the people's procuratorate to execute it. Those who need to continue the investigation and meet the conditions of obtaining a guarantor pending trial or residential surveillance shall be granted a guarantor pending trial or residential surveillance according to law.