The Enforcement Rules of the Prison Act Article 19

“Contraband” referred to under Paragraphs 1 and 3, Article 14, Paragraph 2, Article 72 and Paragraph 1, Article 74 of the Act, refers to any object that is prohibited or restricted from use in Prison. The supervisory authority may establish the types of contraband and the control rules in consideration of order, security and management factors.Prisons shall publish the contrabands and the control rules under the preceding paragraph in proper manners for the knowledge of prisoners, Prison Officers and other persons granted access to guarded areas.
中文原文 監獄行刑法施行細則第19條
本法第十四條第一項、第三項、第七十二條第二項及第七十四條第一項所稱違禁物品,指在監獄禁止或限制使用之物品。
監督機關得考量秩序、安全及管理等因素,訂定違禁物品之種類及管制規範。
監獄應將前項違禁物品及其管制規範,以適當方式公開,使受刑人、監獄人員及其他准予進入戒護區之人員知悉。

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