When the California State Archives received the Kennedy assassination investigation records in August 1987, it was apparent that the records would require special treatment. In examining the material, one is immediately struck by both the magnitude of the investigation and the size and types of records generated by it. Among the 50,000 pages created by Special Unit Senator (SUS) may be found a card index of over 8,200 entries, over 4,800 interviews, nearly 2,900 photographs, 155 items of physical evidence, and a bewildering number and variety of audio and videotapes. In all, the investigation consumed over 6,400 personnel hours during a thirteen-month period and cost in excess of $289,000.