Act of Use of Weapons and Requisite Instruments by the Coast Guard Authority Article 5

Any personnel of the Coast Guard in the course of performing duties may use a police club to exercise forced submission or restriction in any of the following events:(1) To investigate and seize smuggling, crack down illicit entry or exit and support investigation of any crime, or conduct any inspection, search, seizure, arrest, forcible summon, arrest, detainment or other forcible measures;(2) Being under threaten by violence in the course of performing lawful duties.
中文原文 海岸巡防機關器械使用條例第5條
海巡機關人員執行職務時,遇有下列各款情形之一者,得使用棍強制或制止之:
一、執行查緝走私、非法入出國及協助偵查犯罪,或檢查、搜索、扣押、拘提、逮捕、留置及其他強制措施時。
二、依法令執行職務,遭受強暴脅迫時。

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