Regulations Governing the Division of Foreign Affairs-Related Authority & Responsibility and Contact between Military Police and Police in the Taiwan Areas Article 2

Disciplinary picket and guard of the foreign soldiers in Taiwan are governed by the military police, and the police may be requested to provide assistance where necessary. Investigation, registration, inspection, and guardianship of common aliens are governed by the police, and the military police may be requested to provide assistance where necessary.
中文原文 臺灣地區憲警外事勤務權責劃分及聯繫辦法第2條
在臺外國軍人紀律之糾察及警衛,由憲兵主辦,必要時得商請警察協助之,凡屬於普通之外籍僑民之調查、登記、檢查及監護等,由警察主辦。
必要時得商請憲兵協助之。

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