British constitutional law

Parliamentary sovereignty

Third, the UK became a member of the European Union after the European Communities Act 1972 and through its ratification of the Maastricht Treaty in 1992. The idea of a Union had long been envisaged by European leaders, including Winston Churchill, who in 1946 had called for a "United States of Europe" with the UK "at the centre". EU law has always been held to prevail in any conflict between member state laws for the limited fields in which it operates, but member states and citizens gain control over the scope and content of EU law, and so extend their sovereignty in international affairs, through joint representation in the European Parliament, Council of Ministers, and the Commission. This means that, as the UK is a member of the club, it voluntarily agrees to play by the club's rules. This principle was tested in R (Factortame Ltd) v SS for Transport, where a fishing business claimed that it should not be required to have 75% of British shareholders, as the Merchant Shipping Act 1988 said. Under EU law, the principle of freedom of establishment states that nationals of any member state can freely incorporate and run a business across the EU without unjustified interference. The House of Lords held that, because the EU law conflicted with the sections of the 1988 Act, those sections would not be enforced, and disapplied, because Parliament had not clearly expressed an intention to renounce the 1972 Act. According to Lord Bridge "whatever limitation of its sovereignty Parliament accepted when it enacted the [1972 Act] was entirely voluntary". It is, therefore, the courts' duty, until Parliament expresses a clear will to leave the EU on certain terms, to apply EU law. On the other hand, in R (HS2 Action Alliance Limited) v Secretary of State for Transport the Supreme Court held that certain fundamental principles of British constitutional law would not be interpreted by the courts as having been given up by membership of the EU, or probably any international organisation. Here a group protesting against the High Speed 2 rail line from London to Manchester and Leeds claimed that the government had not properly followed the Environmental Impact Assessment Directive 2011 by whipping a vote in Parliament to approve the plan. They argued that the Directive required open and free consultation, a requirement not fulfilled if a party whip compelled party members to vote. The Supreme Court unanimously held the Directive did not prevent a party whip. But if a conflict had existed, a Directive could not compromise the fundamental constitutional principle from the Bill of Rights 1689 that Parliament is free to organise its affairs. In this respect, EU law could not override fundamental principles of the UK's law.