For the pursuit of activities relating to the representation of a client in legal proceedings, a Member State may require lawyers to whom Article 1 applies:
to be introduced, in accordance with local rules or customs, to the presiding judge and, where appropriate, to the President of the relevant Bar in the host Member State;
to work in conjunction with a lawyer who practises before the judicial authority in question and who would, where necessary, be answerable to that authority, or with an ‘avoué’ or ‘procuratore’ practising before it.