Each Member State shall take the necessary measures to ensure that in its criminal law the descriptions of the offences referred to in paragraph 1 of this Article and in Articles 2 and 3 committed by or against its Government Ministers, elected members of its parliamentary chambers, the members of its highest Courts or the members of its Court of Auditors in the exercise of their functions apply similarly in cases where such offences are committed by or against members of the Commission of the European Communities, the European Parliament, the Court of Justice and the Court of Auditors of the European Communities respectively in the exercise of their duties.