Excluding those undergoing drug detox or treatment for communicable diseases, most inmates are assigned to different workshops according to individual skill, length of sentence, conduct record and health condition.
排除生病、受戒治（如毒品成癮的勒戒）或治療處分（如蓄意傳染花柳性病等傳染病給他人者的強制治療）等因素外，多數受刑人都會依個人專才、刑期長短、獄中表現及健康狀況等遴選標準，被分配至型態各異的工場作業。