A court case in Dublin could give the British government the option of revisiting the Brexit decision and reversing it without the consent of the other 27 European Union member states. The court case will also consider whether Britain should still be able to attend all of the meetings of the EU until it actually leaves the organisation. Dan Damon spoke to Jolyon Maugham, director of the Good Law Project and to the BBC's political correspondent Chris Mason. (Photo:European Union flag with the Elizabeth Tower of the Houses of Parliament Credit: PA)