What about our constitutional requirements? Revisiting the decision of the UK to withdraw from the EU

The chapter explores the question of the constitutionality of the UK's withdrawal from the European Union and how the UK commenced its departure from the EU under Article 50. The authors consider the legality and constitutionality of the decision contained in the UK's notification to withdraw which they argue is an important starting point when analysing the parliamentary Brexit process. Konstadinides and Sallustio argue that without a constitutionally valid decision, a process of withdrawal from an international organisation can be contested as being unlawful and thus invalid, and they explore this point within the context of the Supreme Court judgment in Miller I.