The governmental department charged with the regulation and control of the affairs of a community, now chiefly the department established to maintain order, enforce the law, and prevent and detect crime. 警察局負責約束和管理一個社區事務的政府部門，現在被建立主要是用來維持秩序、執行法律和防止和偵破犯罪行為的部門
Regulation and control of the affairs of a community, especially with respect to maintenance of order, law, health, morals, safety, and other matters affecting the public welfare. 警政對一個社區的事務的管理和控制，特別是對有關秩序、法律、健康、道德和安全的維護，以及其它影響到公共福利的事情
