A key issue on trade - leaving aside tariffs is how in practise goods will move. If we think ports are clogged up now by hauliers what will it be like when checks will be need to be carried out on each truck.

Open borders have been the norm for 25 years but if there is no free movement of goods in 2019 what are the practical issues.

Time is real money in the logistics trade so costs must go up if trucks are stuck at borders.

Paperwork will increase and more border staff will be required not just at UK ports but at EU entry ports. It is highly unlikely the EU governments will pay for this so a cooperative plan needs reaching in the BREXIT negotiations.

As part of the UK government's industrial green paper published last week the importance of digitalisation was rightly emphasised. Unblocking border and logistics delays by introducing digitalised paperwork seems an obvious way of linking the UK government's desire for a post industrial digitalised society and their plans of leaving the customs union via Brexit . Is it too much to hope that the UK government's brexit team will talk to UK government's industrial team and the transport department to come up with a unified digitalised solution in conjunction with the EU to solve the delays that will otherwise inevitably occur.