Across several countries (including the UK and U.S.) people of black (African-Caribbean) origin are overrepresented in secure psychiatric services. Risk assessment instruments for predicting violence are often used, but their accuracy is not known for ethnic minority patients. We therefore aimed: 1) to test the accuracy of two leading instruments in patients from a black ethnic minority, and 2) to compare the levels of risk as defined by these instruments. Risk assessment scores were slightly lower for black patients, but there were no significant differences in reconviction rates for either violent or general offences post discharge.