Town of Dover Police 3 Walpole St, Dover, MA02030 The Dover Police Department is located on Walpole Street in Dover, housed in the Protective Services building along…More with the Dover Fire Department. Its sixteen full-time and four part-time police officers are led by Chief Peter A. McGowan. It is a full service police department staffed by officers trained, equipped and ready to handle any situation that may manifest itself. The officers do their utmost to prevent crime, educate the public and assist in problem resolution. In addition, they stand ready to investigate crimes, identify those responsible and prosecute them for the offenses.