The subject of this episode is Trade, in particular the constitutional issues involved in the ongoing trade-negotiations between Britain and the European Union.Discussants are Jenni Dunmore (political advisor on international trade and ACP-EU relations at the European Parliament), Jim Gallagher (former Civil Servant, who headed the Scottish justice department and was the UK government’s most senior adviser on devolution and other constitutional issues), Stephen Gethins (former MP at Westminster and currently Professor of Practice in International Relations, University of St Andrews) and John Hudson (Professor of Legal History, University of St Andrews).