Smithsonian Police is a national labor union of law enforcement officers and agents. Smithsonian Police The Smithsonian Institution Office of Protection Services is the guard force of the Smithsonian Institution. It is a federal guard force consisting of 850 officers with very limited special police authority tasked with protecting visitors, staff, property, and grounds of the federally owned and managed Smithsonian Institution museums and research centers in Washington, D.C., New York City, at the 2,800 acre Smithsonian Environmental Research Center in Maryland as well as oversight of the security operations at the Smithsonian Tropical Research Institute in Panama. According to a 1978
Smithsonian Institution these specimens and artifacts. The Collections Search Center has 9.9 million digital records available online. The Smithsonian Institution Libraries hold 2 million library volumes. Smithsonian Archives hold 156,830 cubic feet of archival material. The Smithsonian Institution has many categories of displays that can be visited at the museums. In 1912, First Lady Helen Herron Taft donated her inauguration gown to the museum to begin the First Ladies' Gown display, one of the Smithsonian's most popular exhibits. The museum displays treasures such as the Star-Spangled Banner, the stove pipe hat that was worn by President Lincoln, the ruby slippers worn by