THE IMPLEMENTATION OF AUTOMATIC DATA PROCESSING OF PRISON RECORDS REQUIRED A COMPLETE FILE CONVERSION IN WHICH EACH INMATE WAS ASSIGNED A UNIQUE NUMBER. THE PRISON INDEX, WHICH IS ORGANIZED IN THE FORM OF THREE MAIN FILES HELD ON MAGNETIC TAPE, HAS THE CAPACITY TO PROVIDE TABULATIONS OF THE TOTAL PRISON POPULATION OR SELECTED AREAS OF THE POPULATION. IT CAN BE USED TO CHECK ALL NEW RECEPTIONS AGAINST ITS FILES, TO REPORT CASES WHERE MATCHES ARE FOUND, AND TO INQUIRE ABOUT INDIVIDUAL CASES.