This paper argues both that devolution is central to our understanding of developments in social policy in the contemporary UK and that social policy is a key means through which we can develop a critical understanding of the process of devolution itself. Much of the devolved powers available to the governments in Edinburgh, Belfast and Cardiff centre on social policy innovation and practice. Devolution was widely welcomed as opening up the potential for the development of radically different social policies. However, the discussion of devolution has been largely dominated by an approach that focuses on institutional and/or organizational differences marginalizing, in the process, the wider social relations of welfare around which social po...