bailiff
noun
[ ˈbeɪlɪf ]
• a sheriff's officer who executes writs and processes and carries out distraints and arrests.
• an official in a court of law who keeps order, looks after prisoners, etc.
• the sovereign's representative in a district, especially the chief officer of a hundred.
Origin:
Middle English: from Old French baillif, inflected form of bailli (see bailie), based on Latin bajulus ‘carrier, manager’.