ABSTRACT The characteristics of the mistreatment of older adults were investigated in a sample of 128 older adults identified as potential mistreatment cases in three community-based agencies in Quebec. Practitioners completed questionnaires to collect quantitative and qualitative data. The study also examined: (1) difficulties in identifying mistreatment, (2) interventions and outcomes, and (3) reasons for the refusal of services. The major finding (with important implications for practice) was the association between type of treatment and perpetrator relationship to victim. The harm reduction model is suggested as a useful approach to guide interventions.