If you want to see someone, whether the family members can visit during the detention depends on whether it is administrative detention or criminal detention. Generally speaking, criminal detention does not allow family members to visit, but administrative detention allows family members to visit and criminal detention allows lawyers to meet.
After criminal detention, the parties are usually detained in the detention center first. If the public security organ has clearly filed a criminal case for investigation, the criminal suspect shall be arrested and transferred to the people's procuratorate for examination. The procuratorate will examine and determine the facts of the crime and will sue to the court for judgment.