Act of Use of Weapons and Requisite Instruments by the Coast Guard Authority Article 8

If the use of dagger or firearm fails to stop the crime in any of the following events, any personnel of the Coast Guard in the course of performing duties may use guns as may be required in the opinion of the highest-ranking official of the Coast Guard authority that no other alternative is available:(1) Being endangered or threaten by force; or(2) Anyone boarding a sea vessel or any other maritime transportation sailing at the Waters navigating in the sea territory is suspected in the offense against major crime including but not limited to piracy, murder, or smuggling firearms and/or drugs in the territory of the Republic of China refuses to submit or attempts escaping after the chasing and arrest.In the circumstance mentioned in paragraph 1 of this Article, where the situation is urgent or effective communication is impossible, the use of firearms shall be subject to the decision of the highest-ranking official on the scene.
中文原文 海岸巡防機關器械使用條例第8條
海巡機關人員執行職務,遇有下列各款情形之一,經海洋委員會海巡署署長就該情形合理判斷,認已無其他手段制止時,得於必要限度內使用砲:
一、遭受武力危害或脅迫時。
二、航行海域內之船舶或其他運輸工具,其承載人員涉嫌在我國領域內觸犯內亂、外患、海盜、殺人或走私槍械、毒品之罪,經實施緊追、逮捕而抗不遵照或脫逃時。
前項第一款情形,於情況急迫或無法有效通聯時,得由現場最高指揮官認定之。

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