Legal basis: Article 97 of the Law of People's Republic of China (PRC) on Public Security Administration Punishment, the public security organ shall announce the decision on public security administration punishment to the punished person and deliver it to the punished person on the spot; If it cannot be announced to the punished person on the spot, it shall be served on the punished person within 2 days. If it is decided to give administrative detention, it shall promptly notify the family members of the punished person.
After the public security organ takes compulsory measures against the criminal suspect, it shall promptly notify the family members. Except for criminal compulsory measures that hinder investigation.