Sexual victimizations are generally under-reported to the police. Persuasive communication campaigns are suggested as a feasible instrument to stimulate victim-reporting. Determinants of reporting decisions are reviewed. This review results in a working model to design and evaluate such persuasion campaigns. In the experiment the social psychological impact of a specially designed persuasive programme is explored. Results suggest that this programme is successful in changing the perceived likelihood of positive outcomes associated with reporting, and in strengthening the perceived normative expectations to report, held by others in the potential victim's environment. Some suggestions for countering possible side-effects are discussed.