Dissemination of criminal justice information : hearings before the Subcommittee on Civil Rights and Constitutional Rights of the Committee on the Judiciary, House of Representatives, Ninety-third Congress, second session, on H.R. 188, H.R. 9783, H.R. 12574, and H.R. 12575, to amend title 28 of the United States code to provide for the dissemination and use of criminal arrest records in a manner that insures their security and privacy, July 26, August 2, September 26, October 11, 1973; February 26, 28, March 5, 28, and April 3, 1974.