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. 警察局负责约束和管理一个社区事务的政府部门，现在被建立主要是用来维持秩序、执行法律和防止和侦破犯罪行为的部门
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. 警政对一个社区的事务的管理和控制，特别是对有关秩序、法律、健康、道德和安全的维护，以及其它影响到公共福利的事情
