"Los Angeles (Calif.). Police Department. Special Unit Senator." . . . . . . . . . . "Records prepared or received by Special Unit Senator (SUS) during the investigation to determine criminal background, if any, of witnesses or individuals interviewed. Each individual was subject to a background check initiated by the following agencies: Records and Identification Division (LAPD); Intelligence Division (LAPD); Bureau of Identification and Investigation (California Dept. of Justice); and the FBI. Results were utilized to evaluate credibility of individuals and to determine their previous involvement with militant or subversive groups."@en . "Record and background check files"@en . . .