UMPD Chief Michael Gonnella Retirement: Chief Gonnella has officially retired from the Upper Marlboro Police Department as of Tuesday February 28, 2017 after over 12 years of dedicated service as the Town’s Police Chief. The Board of Town Commissioners presented Chief with Resolution 2017-00 thanking him for his years of service as the Town’s Police Chief, and a small retirement reception has held at Town Hall later in the afternoon. The Town wishes him well on his retirement! UMPD Sgt. Washington is currently the Town’s Interim Police Chief.