1, 2. The detention center with flexible execution is generally selected during the day. Generally speaking, it is usually before 18: 00 in the morning or afternoon.
2. According to Article 85 of the Criminal Procedure Law of People's Republic of China (PRC), when a public security organ detains a person, it must produce a detention permit. After detention, the detained person shall be immediately sent to the detention center for custody, and shall not exceed twenty-four hours.