The statutory functions of the Supplementary Benefits Commission are described, together with the Secretary of State's invitation to the Commission to play a more active and public part in reformulating the problems of social assistance and proposing policies for dealing with them. Next the Commission's Chairman considers how he and his colleagues should respond to this invitation and which issues they should concentrate upon, focusing particularly on the growing use of discretion in a service originally intended to confer clearly understood rights, the bewildering complexity which results from this trend, and the ‘frontier’ problems arising between their service and other social services. In conclusion he considers the implications of the Commission's extended role for other bodies and the Commission's relations with them – particularly Ministers and their advisers, the academic community, the communications media, and the pressure groups. Ultimately, he asks, should the Commission itself be abolished?