brown shirt

noun3

1. •
   A worker whose role is identified by a uniform with a brown or khaki shirt.
2. •
   A member of the squadron personnel on an aircraft carrier.

   • Aircraft maintenance brown shirts crawled over the plane, checking fasteners and the landing carriage. — 1992
3. •
   A member of the Alaska Fish and Wildlife Protection Services.

   • We really could use a brown shirt in the Park. I don't have time to be screwing around with critter problems. — 2007