MPD Patches: Here is a sampling of patches that were recently turned over to the Metropolitan Police memorial and Museum from Commercial Emblem. The proprietors of that business supported MPD and HEROES, Inc. for many years. Harbor Patrol Office of Internal Affairs Rapid Deployment Unit S.O.D. , Canine Corps Boys & Girls Clubs E.O.D. Cadet Police Association Crime Solvers K-9 Justitia Omnibus:Justice to all Bomb Unit Official’s Association Metropolitan Police R.O.P.E. Operation Safe Streets 911 E.R.T.