I thank my hon. Friend for his intervention. He is quite right. There is a number of those accounting systems, but there is also a number of other systems and structures in place in Northern Ireland. I have to be honest about this. Although I have engaged with some of his colleagues on this over the past two years, many Members in this House and the broader public are still ignorant of the matter. It would, I think, be to the benefit of the House if some of these issues were explored in greater detail and in greater depth, so that Members can make more educated decisions, especially when we are working on such controversial issues as withdrawal from the EU, and as we start mapping out our future trading relationship with Europe. As he will recognise, this will also be important when we have new free trade agreements with other countries around the world—whether they are the rollover agreements that are coming across from the EU or, indeed, new trade agreements such as those with the United States of America. I will touch on that matter in just a moment.