copland

Perhaps from obsolete cop (“summit, hilltop”) +‎ land.

copland

1. (obsolete) A piece of ground terminating in a point or acute angle.
   • 1622, Michael Drayton, A Chorographicall Description of All the Tracts, Rivers, Mountains, Forests, and other Parts of this Renowned Isle of Great Britain, page 64:

     For th'surface of a soyle, a Copland, Copland cry , Till to your shouts the Hills with Ecchoes all reply.

From cop (“police officer”) +‎ land.

copland (uncountable)

1. The world of police officers and police activity.
   • 2007, Randy Jurgensen, ‎Robert Cea, Circle of Six: The True Story of New York's Most Notorious Cop Killer and the Cop who Risked Everything to Catch Him.:

     When that thirteen alarm sounded, everything in copland stopped, all focus was on the radio for the coordinates.

   • 2010, C.B. Forrest, Slow Recoil:

     Last he'd heard, Aoki was in line for a jump to Homicide, the Holy Grail in copland.

   • 2012, James Patterson, Kill Alex Cross, page 462:

     The other had a face that Rodney Glass would never forget. Not since they'd been nose to nose in that interview room in copland.