2. When an arrest is made, the arrest warrant must be produced, and the arrested person must be ordered to sign the arrest warrant and press his fingerprint. If the investigator refuses to sign or fingerprint, the investigator shall indicate it.
3. After the arrest of a criminal suspect, a notice of arrest shall be issued within 24 hours after the arrest to inform the family members of the arrested person, except in cases where it is impossible to notify. The notice of arrest shall specify the reasons for the arrest and the place of detention. The defendant's family and the arrestor signed the arrest notice.
Legal basis: Criminal Procedure Law of People's Republic of China (PRC).
Article 69 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.
Article 71 After an arrest, the family members of the arrested person or his unit shall be informed of the reasons for the arrest and the place of detention within 24 hours, except that it will hinder the investigation or cannot be notified.