It is the Navy that polices the sea lanes: for example, battling pirates.
Anyone who can't see how corrupted our polices are by the arms-dealer front group known as the NRA isn't looking very hard.
The society now protects and polices about one hundred of these refuges, which, of course, are worthless unless thus protected.
It was a clever idea to paint up the side of the Chief of polices barn!
It polices the coast as the navy polices the ocean, and its duties are as varied as they are weighty and important.
c.1530, at first essentially the same word as policy (n.1); from Middle French police (late 15c.), from Latin politia "civil administration," from Greek polis "city" (see polis).
Until mid-19c. used in England for "civil administration;" application to "administration of public order" (1716) is from French (late 17c.), and originally in English referred to France or other foreign nations. The first force so-named in England was the Marine Police, set up 1798 to protect merchandise at the Port of London. Police state "state regulated by means of national police" first recorded 1865, with reference to Austria. Police action in the international sense of "military intervention short of war, ostensibly to correct lawlessness" is from 1933. Police officer is attested from 1800. Police station is from 1817.
"to keep order in," 1580s, from Middle French policer, from police (see police (n.)). Meaning "to keep order by means of police" is from 1837. Related: Policed; policing.
To clean up a camp, barracks, parade ground, etc; make neat and orderly (1851+ Army)