Plot: David Dimbleby chairs the debate from Yeovil. On the panel are the Conservatve's Theresa Villiers MP, former secretary of state for Northern Ireland, Labour's David Lammy MP, author of the Lammy Review into the treatment and outcomes of BAME offenders in the justice system, Richard Walker, managing director, Iceland Foods, Faiza Shaheen, director of CLASS (Centre for Labour and Social Studies) and Camilla Cavendish, former head of policy for David Cameron