How long can Zhong Kai Food and Drug Ring Brigade detain people?

If detained, it can last up to 37 days. I think your daughter was summoned by the police station, and the detention time of the summoned interrogators should not exceed 24 hours from the time they were taken to the public security organ. Under special circumstances, with the approval of the public security organ at or above the county level, it may be extended to 48 hours, and the interrogation record shall be kept. If it exceeds 48 hours, there are only two possibilities. 1 Suspected evidence has been approved for custody. 2. Illegal detention by public security organs.

Article 91 of the Criminal Procedure Law of People's Republic of China (PRC), if the public security organ deems it necessary to arrest a detained person, it shall submit it to the people's procuratorate for examination and approval within three days after detention. 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.