§ Lord Tebbit
asked Her Majesty's Government:
Whether they will set out the procedure by which Parliament, if it thought fit, might change the law in the event that a ruling by the European Court proved to be adverse to the interests of the United Kingdom, unjust or contrary to the intentions of Parliament. [HL1456]
§ The Parliamentary Under-Secretary of State, Foreign and Commonwealth Office (Baroness Symons of Vernham Dean)
In passing the European Communities Act of 1972 Parliament accepted and legislated to implement the UK's obligations under the treaties to give effect to European Community law. If Parliament wished to legislate in a way which was contrary to a ruling of the European Court of Justice the UK would have to negotiate an amendment to the EC instrument which was the subject of the ECJ ruling or be in breach of its treaty obligations.