The fifteenth prison area. The prison area with the largest working environment and the most complicated prisoner structure in Shangbancheng Prison is the fifteenth prison area in Shangbancheng, and it is also the most tiring and arduous prison area. Shangbancheng Prison in Hebei Province was established in June 1965 and June 1 1. Formerly known as Chengde Second Independent Reform-through-Labor Brigade, it was renamed Chengde Second Reform-through-Labor Brigade in June 197 1 and Hebei Fifth Reform-through-Labor Detachment in May 1978.