Legal analysis: How to find out where the detainees are being held: those who are detained by public security punishment will not come out until the detention period expires, and they should know why they are being detained. If you are under criminal detention or arrest, only a lawyer can see you. According to the existing law, family members or friends can't meet criminal suspects, only when they attend court meetings. During this period, only lawyers are entrusted to enter the detention center to meet with criminal suspects or defendants.
Legal basis: Article 10 of People's Republic of China (PRC) Public Security Administration Punishment Law can be divided into: (1) warning; (2) a fine; (3) Administrative detention; (4) Revoking the license issued by the public security organ. Foreigners who violate the administration of public security may apply for another time limit to leave the country or be deported.