Pioneering barrister and social entrepreneur whose remarkable career ranged from immigration adviser to TV presenter and Labour councillorIt all began over a bottle of claret in a City wine bar in the early 2000s. Roger Warren Evans, a social entrepreneur and barrister, was lamenting with his solicitor friend Stephen Lloyd the low profile of the not-for-profit sector.As the evening wore on, the two lawyers developed the idea of creating an organisation that served the public interest but was not