With every day that negotiations remain at an impasse in Brussels the chance of a no-deal Brexit increases. But it is still unclear, and in some cases unknowable, precisely what that would mean. Here we look at the best and worst case scenarios for a no-deal Brexit across a range of areas.





The UK is blocked from using crime-fighting tools which rely on EU membership. These include the European arrest warrant, under which EU countries arrest and detain suspects on behalf of other member states, and the Schengen information system, which is a database used by police to search for terrorist suspects, missing people and vehicle details. The Schengen system was checked 539 million times by British officers last year. British courts cannot use the