Prince George’s County police Chief Hank Stawinski speaks at a news conference on Monday, Jan. 6, 2020. (WTOP/Michelle Basch) Prince George’s County police Chief … The Original FCPD History Book “History of the Fairfax County Police Department, 1921 – 1990” This is the first comprehensive written history about one of the top police agencies in the USA, authored by retired FCPD 2nd Lieutenant Dan Courtney and put together by a dedicated team of retired Officers and a civilian volunteer. The Chief of the Fairfax County Police Department is Colonel Edwin C. Roessler, Jr., who was appointed to that position on July 30, 2013.. Chief of the Fairfax County Police Department. The position of chief was created with the establishment of the Fairfax County Police Department as a separate law enforcement agency from the Fairfax County Sheriff's Office on July 1, 1940.