United States. Defense Security Service

found: U.S. Cong. House. Comm. on Government Reform. Subcom. on National Security, Veterans Affairs, and International Relations. Defense Security Service oversight, hearing ... 2000:t.p. (Defense Security Service) p. 1 (Department of Defense (DOD); DOD's Defense Security Service; DSS) p. 42 (DSS [predecessor] was est'd in 1972)

found: Defense Security Service's web site, www.dss.mil, at About DSS, 12/5/2000(formerly known as the Defense Investigative Service (DIS), DoD Reform Initiative #2 redesignated DIS as the Defense Security Service (DSS) in Nov. 1997)

found: DCSA ACCESS, summer 2019:page 6 (June 20, 2019, Defense Security Service was officially renamed Defense Counterintelligence and Security Agency)

found: Defense Counterintelligence and Security Agency website, Dec. 23, 2019:About Us, History, Personnel Security (Dec. 29, 1971 Secretary of Defense memorandum established Defense Investigative Service, became operational on Oct. 1, 1972)