The practice theory as developed in this paper is derived from the writings of William Glaser. The model of reality therapy presented in this paper is highly structured, encompassing interphase planned movement; diagnostic mapping, written contracts, and specific suggestions at critical points in the therapeutic process. The five basic treatment techniques include involvement, current behavior, evaluation of behavior, planning responsible behavior, and commitment. Each is illustrated with a case example. Also, these techniques are described in the order in which they are usually introduced into the treatment situations. The author concludes that reality therapy can lead to responsible behavior for most adult offenders. 17 references (Author abstract modified)