Copenhagen criteria and their progeny / Christophe Hillion -- Reforming the Union's institutional framework : a new EU obligation? / Geoffrey Edwards -- Impact of enlargement on the Union's institutions / Alan Dashwood -- Referendums in the CEE candidate countries : implications for the EU treaty amendment procedure / Anneli Albi -- Accession Treaty and its transitional arrangements : a twilight zone for the new members of the Union / Kirstyn Inglis -- Spectre is haunting Europe : free movement of persons and the eastern enlargement / Michael Dougan -- Financial and budgetary impact of enlargement and accession / Alan Mayhew -- Impact of accession on the criminal law and criminal procedure of the new member states / John R Spencer -- EU enlargement and EU common strategies on Russia and Ukraine : an ambiguous yet unavoidable connection / Marc Maresceau -- Final remarks / Allan Rosas