Glenn Dale Hospital was a tuberculosis sanitarium in Prince Georges County, Marylan in the United States. Although the complex is located in Maryland, it is owned by the government of Washington, D.C.. It is a large facility, consisting of 23 buildings on 210 acres, that was built in 1934 and closed in 1982 due to asbestos. Though it is now closed and will be eventually demolished, for decades it was an important public health institution near Washington, D.C.. Park Police patrol the hospital grounds regularly. A local police officer, Howard Johnson, also resides on the premises. His most recent "busts" were three Annapolis-area teenagers at 10:10 PM on October 10th 2007.