Detention Act Article 20

Correctional officers at a detention center may use batons, knives, firearms, and other weapons approved by the Ministry of Justice to implement necessary measures under any of the following circumstances:1. A defendant uses violence or coercion to threaten the lives, physical safety, or freedom of others or there is sufficient evidence of imminent act of violence or threat.2. A defendant is in possession of an object that enables him/her to engage in the act of violence or threat and the defendant refuses to obey order to drop such an object.3. A defendant assembles a crowd for riot or commits other disruptive acts and refuses to obey order to stop.4. A defendant escapes or attempts to escape and refuses to stop when ordered;5. The equipment or facilities of the detention center is plundered or damaged or there are sufficient facts indicating the likelihood of equipment or facilities being damaged.Correctional officers may use firearms only when their lives or the lives of others are in imminent danger, and the use of firearms may not be excessive.Regulations governing the types, timing and method of use, and other requirements for batons, knives, firearms, and weapons specified in the two preceding paragraphs shall be prescribed by the Ministry of Justice.
中文原文 羈押法第20條
有下列情形之一,看守所人員得使用法務部核定之棍、刀、槍及其他器械為必要處置:
一、被告對於他人之生命、身體、自由為強暴、脅迫或有事實足認為將施強暴、脅迫時。
二、被告持有足供施強暴、脅迫之物,經命其放棄而不遵從時。
三、被告聚眾騷動或為其他擾亂秩序之行為,經命其停止而不遵從時。
四、被告脫逃,或圖謀脫逃不服制止時。
五、看守所之裝備、設施遭受劫奪、破壞或有事實足認為有受危害之虞時。
看守所人員使用槍械,以自己或他人生命遭受緊急危害為限,並不得逾必要之程度。
前二項棍、刀、槍及器械之種類、使用時機、方法及其他應遵行事項之辦法,由法務部定之。

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