Prison Act Article 43

A prison may appoint or invite people with relevant knowledge or passion for correctional treatment to assist in edification activities. The prison may also recruit people interested in social welfare initiatives as volunteers to assist in edification work.The volunteers specified in the preceding paragraph shall be reported by the prison to the supervisory authority for approval before their recruitment.
中文原文 監獄行刑法第43條
監獄得聘請或邀請具矯治處遇相關知識或熱誠之社會人士,協助教化活動,並得延聘熱心公益社會人士為志工,協助教化工作。
前項志工,由監獄報請監督機關核定後延聘之。

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