Police Act Article 2

The mission of the police is obligated to maintain public order, protect social security, prevent all hazards, and promote public welfare according to applicable laws.
中文原文 警察法第2條
警察任務為依法維持公共秩序,保護社會安全,防止一切危害,促進人民福利。

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