Fairfax County Police Department - Operations Support Bureau 3911 Woodburn Rd, Annandale, VA22003 The Operations Support Bureau is a special unit of the Fairfax County Police Department. There are two divisions within…More the bureau, traffic and special operations. The special operations unit includes S.W.A.T., the K-9 unit and helicopter support. The traffic division includes the traffic safety auxillary, crash construction course and a motorcade. The bureau is not a police station, but rather a support system for the several branches of police within Fairfax County.