This article describes the need for a better understanding of the moderating effects of child welfare services on delinquency. Although juvenile delinquency is a commonly studied issue, researchers have paid little attention to the degree to which child welfare services may be associated with changes in subsequent delinquency rates. Emerging evidence suggests that for certain groups of maltreated children, such as children of color and females, certain child welfare services are associated with variations in risk of delinquent outcomes. The article discusses key methodological, theoretical, and policy implications that help guide further research in this area.