patrolman

noun
1
(in the US) a male police officer who walks or drives around an area to make sure that there is no trouble or crime
پلیس گشتی, افسر گشت, مأمور گشت
2
(in Britain) a male official of an association for car owners who goes to give help to drivers who have a problem with their cars
نیروی امداد خودرو, مأمور خدمات راه, کارمند تعمیرات خودرو, ریپیرکار جاده‌ای, تکنسین خودروی سیار