The 1995 Survey of Adults on Probation (SAP) was the first national survey to gather information on the individual characteristics of adult probationers. The SAP was a two-part nationally representative survey consisting of a records check based on probation office administrative records and personal interviews with probationers. The records check provided detailed information for 5,867 probationers on current offenses and sentences, criminal histories, levels of supervision and contacts, disciplinary hearings and outcomes, and demographic characteristics. Only adults with a formal sentence to probation who were not considered absconders were included in the records check. Excluded were persons supervised by a federal probation agency, those only on parole, persons on presentence or pretrial diversion, juveniles, and absconders. The records check forms were completed by a probation officer or by another person knowledgeable about probation office records. A subset of the population selected for the records check was selected for a personal interview, resulting in a total of 2,030 completed interviews. The personal interview sample excluded from the records check sample probationers not on active probation (defined as being required to make office visits at any interval), those incarcerated, and those in residential treatment. Respondents were asked about current offense(s) and supervision, criminal history, alcohol and drug use and treatment, mental health treatment, demographic characteristics, and a variety of socioeconomic characteristics such as employment, income, receipt of welfare, housing, number of children and child support, and living conditions while growing up.