A law officer, such as a sheriff or marshal.
执法吏法律官员，如美国的县行政司法长官或警长
A peace officer with less authority and smaller jurisdiction than a sheriff, empowered to serve writs and warrants and make arrests.
治安官管辖权和管辖范围都小于县治安官的治安官，有权送达传票及逮捕（搜查）令并可以施行逮捕
An official who assists a British sheriff and who has the power to execute writs, processes, and arrests.
司法官协助英国执行官的官员，有权执行令状、发传票以及逮捕
