The Enforcement Rules of the Immigration Act Article 24
If a deportation order is enforceable on timely and a temporary detentions or alternative detentions not deemed necessary, the National Immigration Agency shall enforce deportation orders directly.
中文原文 入出國及移民法施行細則第24條
外國人所受強制驅逐出國處分得及時執行，而無暫予收容或收容替代處分必要者，移民署應逕執行之。