In 2016, the impact of Brexit on the European Union (EU) was expected to result in social and economic changes to the Union, but also longer term political and institutional shifts. The extent of these effects remain somewhat speculative until the precise terms of the United Kingdom's post-Brexit relationship with the EU becomes clear. With an end to British participation in the EU's policies on freedom of movement of goods, persons, services, and capital, and the European Union Customs Union, as well as sharing criminal intelligence and other matters, there is a clear impact with consequences for both institutions.