Regulations Governing the Installation, Use and Management of Technical Equipment in Prisons and Detention Centers Article 12

Authorities may use technical equipment to collect and process Biological Personally Identifiable Data of Inmates.To collect and process Biological Personally Identifiable Data of officers of Authorities or persons accessing the premises other than those specified in the preceding paragraph, a prior notice shall be provided before the collection about the scope of data collection, the purpose of use and the retention period.
中文原文 監獄及看守所科技設備設置與使用及管理辦法第12條
機關得運用科技設備蒐集、處理收容人之個人生物特徵識別資料。
蒐集、處理前項以外機關員工、進出人員之個人生物特徵識別資料,應於蒐集前告知資料之蒐集範圍、使用目的及保存期限。

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