lawman
From Longman Dictionary of Contemporary EnglishRelated topics: Policelawmanlaw‧man /ˈlɔːmæn $ ˈlɒː-/ noun (plural lawmen /-men/) [countable] American English informalSCPLAW any officer who is responsible for making sure that the law is obeyedExamples from the Corpuslawman• Tall, trim and square of jaw, he looks more like a lawman than an outlaw.• He was the best lawman the Old West has ever known.