Charlotte Smith discusses how farming and the environment could be regulated post Brexit. Much of agriculture is currently legislated from Brussels - so which of those existing laws should we keep, and which should we ditch? She's joined in the discussion by two MEPs: Molly Scott Cato for the Green Party and Julie Girling for the Conservatives; and by former Environment minister and Welsh Assembly Member Huw Irranca Davies. We also hear from a farmer explaining how the current system of subsidies works for him; and from another who receives funding to improve water quality on his land. Produced by Sally Challoner.