In a context in which research evidence indicates high rates of alleged sexual victimization among adults with psychosocial disabilities, this article draws upon rape allegation data collected by the Metropolitan Police Service in April and May 2012, to explore some of the challenges that are posed to the criminal justice system by these types of complainants. Although the insights that can be generated from these data in relation to complainants with psychosocial disabilities are limited, in the context of this article it provides a valuable snapshot into contemporary patterns of rape victimization and attrition in England and Wales. It also serves as a useful stepping off point from which to highlight the need for more sustained critical research and reflection on the treatment of complainants, and the adequacy of police and prosecutor training and practice in this area.