Michael McGrath (Cork South Central, Fianna Fail) | Oireachtas source

Could Mr. Irwin take us through a scenario where the UK leaves the customs union and there is not any either temporary or permanent free trade deal in place and one has a customs border with a third country? In practice, what does that mean in a scenario where some tariffs apply, for example? What is the best case scenario in terms of maximum use of technology and so on? Are we looking at trucks not being stopped at all, at any point, in terms of crossing the Border, and what is the worst case scenario? What are we looking at in practice?