The instrument is composed of three parts: the individual assessment interview, the officer's impressions of the probationer during the interview process, and an answer sheet for the development of probationer profiles to assist the officer in referral and supervision strategies. Each section develops information about the probationer's drug use and lifestyle. These sections pertain to personal drug use, drug use and criminal behavior, consequences of use, treatment history, probationer's reality, and officer's impressions. The instrument is designed to be used with documents that verify certain information solicited during the interview. These documents include the probationer's criminal history, the intake form, the presentence investigation report, case classification, and information on previous treatment.