Keeping the peace
From Textop Wiki
Those who “execute judgments given,” keep order, and fight crime are “public ministers.”
Public ministers are also all those that have authority from the sovereign to procure the execution of judgements given; to publish the sovereigns commands; to suppress tumults; to apprehend and imprison malefactors; and other acts tending to the conservation of the peace. For every act they do by such authority is the act of the Commonwealth; and their service answerable to that of the hands in a body natural.
Hobbes, Lev XXIII 10