May I make some progress first?
Three specific objections to a customs union tend to be presented. First, people say that we do not need a customs union because there are alternatives, usually based on new technology. Secondly, they argue that we will be better off outside the customs union, and that being outside is a price worth paying for the benefits that we will enjoy as a result. Thirdly, they make an emotional appeal, claiming that it is somehow at the heart of our sovereignty or the Brexit vote. I disagree with all three counter-arguments, and I will deal with each of them briefly.
Let me deal first with the claim that a customs union is not needed and we can solve everything with new technology instead. So far the Government have put forward two alternatives: a customs partnership and “max mac”, which seems to be the latest name for a streamlined arrangement described as “maximum facilitation”. The customs partnership—to be honest, I had to struggle to get my head around it—seems to involve our collecting EU tariffs at the border, tracking products, and then paying some of the money to the EU. I understand that both the Secretary of State for Exiting the European Union and Brussels have agreed that it is unworkable. It is quite a triumph for the Government to have come up with a proposal whose unworkability has managed to unite Brussels and the Brexit Secretary and those whom he defends.
The alternative is speeded-up customs arrangements at the border. The idea is that all the customs forms would be filled in online, customs checks would be carried
out at the trader’s own premises rather than at the border, and there would be cameras and automated number plate recognition. An extreme version of that was proposed by the Financial Secretary, who compared it with the congestion charge between the Islington and Camden borders.
Let me be clear: I think we could do a great deal more with new technology at our borders. In the interests of trade, we should be improving the technology, and the use of technology, at our borders and at borders throughout Europe and the world. However, there is still a limit to how far we can go. First, it will take a long time and a lot of investment to roll out many elements of the technology. Secondly, in the case of the congestion charge, the cameras identify only the cars, not what was in them, so cameras do not solve all the problems involving checks. Thirdly, we would have to rely on the willingness of France, Belgium, Ireland and other countries to provide the same level of investment in the technology at the same pace.
The proposal also assumes a higher level of tolerance of smuggling and evasion of tariffs. The Prime Minister, for example, has suggested that in Northern Ireland 80% of trade—the micro, small and medium-sized businesses—could be exempt from all checks. That level of exemption would require agreement with other countries. There is also the question of how enforcement would take place to ensure that there was no systematic evasion of tariffs.