I very rarely disagree with the noble Lord, Lord Pannick, and there is a very good reason for that. On every occasion when I have had to give a judgment in a case which he has argued, I have found against him, and on every occasion when he has appealed my judgment he has succeeded. That is more or less accurate.
The issues that arise here can be very briefly summarised by reference to Article 50. It is not a point I would have made if the noble Baroness, Lady Lawrence, had been sitting in her place. In 2003, the previous Labour Government brought forward a provision that did away with the prohibition on a second trial—the ancient common law principle of double jeopardy. Faced with the prospect of new and compelling evidence, for example by further research through DNA and the like, with which we are familiar, the Act was passed. Article 50 prohibits that provision that was made in primary legislation. The result would have been that two men now serving imprisonment following conviction for murder of that innocent boy would never have been prosecuted to conviction.