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
Conservation and restoration at the Smithsonian Institution and conservation for all Smithsonian units and collections, and these services are available at no charge. New Insights into the Cleaning of Paintings” conference held at the Universidad Politécnica de Valencia and Museum Conservation Institute The National Museum of African Art houses a state-of-the-art conservation laboratory, which includes a complete x-radiography system with digital imaging. The conservation department routinely collaborates with MCI and other SI units to analyze African art materials, investigate manufacturing processes, and resolve treatment problems. In turn, the department serves as a national and international authority on the conservation of African art. The Walt Disney-Tishman African Art