Prison Act Article 149

Open prisons may be set up to encourage inmates to engage in works in production, services, public construction, or other specific operations, and to implement progressive treatment for inmates to gradually adapt to social life. The management and implementation of the treatment therein shall be stipulated in a separate legislation.
中文原文 監獄行刑法第149條
為使受刑人從事生產事業、服務業、公共建設或其他特定作業,並實施階段性處遇,使其逐步適應社會生活,得設外役監;其管理及處遇之實施另以法律定之。

English translation for reference only; the Chinese text prevails. Not legal advice.