The Regulations Governing Labor by Prisoners Article 17

The prison shall, as per its business needs, be entitled to temporarily select prisoners with special expertise for comparable work, after the relevant unit reports to the prison official for approval. Such work period shall be less than three months and shall not be subjected to the restrictions of the preceding two articles.
中文原文 受刑人作業實施辦法第17條
監獄得因業務需要,由相關單位簽報監獄長官核定後,暫時遴選具有特殊專長之受刑人擔任視同作業,期間不得逾三個月,不受前二條規定之限制。

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