Detention center is a special law enforcement agency for the state to detain criminal suspects. The state is responsible for the food of the detainees, and their living conditions are not good. Daily necessities need to be purchased at your own expense. Prohibited articles such as alcohol and cigarettes are not allowed to enter the cell.
But it is ok to send daily necessities and money, but it is not allowed for the time being, because we are afraid that there will be infectious diseases during the COVID-19 epidemic, and it will not be allowed until the epidemic has passed.