Member States may provide in their national law for their courts to be able to request their diplomatic agents or consular officers in the territory of another Member State and within the area in which they are accredited to take evidence at the premises of the diplomatic mission or consulate, except in exceptional circumstances, without the need for a prior request, by hearing, on a voluntary basis and without the use of coercive measures, nationals of the Member State which they represent in the context of proceedings pending in the courts of the Member State which they represent. The requested diplomatic agent or consular officer shall execute the request in accordance with the law of his or her Member State.