This article examines an imperial scandal concerning the treatment of patients in the lunatic asylum of Kingston, Jamaica, that highlighted the inadequacies of the imperial government. A significant moment in the development of colonial public health policy, this scandal also spoke to broader questions of postemancipation imperial governance. At the heart of the scandal was a debate about whether standards of treatment developed in Britain—symbolized by the image of the ideal asylum and the ideology of moral management—could and should be implemented in colonies. This debate was all the more fraught because the designation of moral management as the official protocol was recent, its implementation incomplete, and its underlying ideas contested. Nevertheless, despite the instability of these ideas, during the scandal and its aftermath, actors treated them as a monolithic package of standards before making them the definitive model for all colonial institutions. Indeed, the scandal helped further bolster moral management in Britain.