Stealing that is not limited to food is often a low-rate, clandestine response (Azrin & Wesolowski, 1974; Henderson, 1981; Seymour & Epston, 1989) precluding unstructured direct observation. Therefore, a possible role for indirect assessment emerges. We examined the reliability of a new indirect assessment tool (The Stealing Inventory [TSI]), which included questions oriented toward likely stealing functions. A preliminary examination of the extent to which outcomes from the TSI would predict responding during functional analysis (FA) probes was also completed. For 42 cases, overall tool reliability was 85% and exact outcome agreement or agreement with a tie between functional categories occurred for 90.5% of cases. Four of six participants stole during one of their respective FA probes, and suggested functions matched the respective TSI outcomes for each case.