Research on social work in the criminal justice system was well represented in the social work literature until the 1990s. Since then, changes in the organisation, training and research base of probation practice, particularly in England and Wales, have all contributed to a separation between probation research and the mainstream social work research literature. However, recent probation research, by focusing on individual practice skills and on the quality of relationships, is producing findings which resonate with traditional social work concerns. The study presented here, based on analysis of videotaped interviews between probation staff and the people they are supervising, shows what skills are used and the effects of skilled supervision. People supervised by more skilled staff were significantly less likely to be reconvicted over a two-year follow-up, and the most effective supervisors combined good relationship skills with a range of 'structuring' or change-promoting skills. In effect, this can be regarded as a test of the impact of social work skills used by probation staff and suggests that a closer relationship between mainstream social work research and probation research could be productive for both.
Keywords: Impact; interviewing; probation; social work methods.