On the occasion of the Brexit referendum I sat up through the night following the count. As the results came in from the various constituencies and what had been described as the unthinkable became the inevitable, the commentators began the discussion on the repercussions.

You will I’m sure remember that during the negotiation process between then UK Prime Minister David Cameron and the EU, it couldn't have been any more clearly stated that restricting the freedom of movement of people was non-negotiable.