This training manual for criminal justice personnel addresses three general areas: (1) the nature of mental retardation and its relationship to criminal behavior, (2) the history and extent of the problem of the retarded offender, and (3) mechanisms for the delivery of services to this group of offenders. The manual is divided into twelve chapters designed to correct the injustices caused by failure to recognize the offender as being a retarded person or by an unfamiliarity with the nature of retardation and how to deal with this special problem. Chapter titles include Introduction: Why This Manual?; Tom P.: A Case History; Mentally Retarded Citizens: Who Are They?; Myths and Facts; Mentally Retarded Offenders: Who Are They?; A Discussion of the Problems and Issues of Mentally Retarded Offenders; Problems of Identification: Mentally Retarded Offenders; A Clinical and Practical Discussion of Retardation and Criminal Behavior; Retarded Offenders: Habilitative Program Development; Legal Rights; and Other Associated Disabilities. A bibliography is included. (LRA)