A/RES/59/38 Article 3 Privileges and immunities not affected by the present Convention 1. The present Convention is without prejudice to the privileges and immunities enjoyed by a State under international law in relation to the exercise of the functions of: (a) its diplomatic missions, consular posts, special missions, missions to international organizations or delegations to organs of international organizations or to international conferences; and (b) persons connected with them. 2. The present Convention is without prejudice to privileges and immunities accorded under international law to heads of State ratione personae. 3. The present Convention is without prejudice to the immunities enjoyed by a State under international law with respect to aircraft or space objects owned or operated by a State. Article 4 Non-retroactivity of the present Convention Without prejudice to the application of any rules set forth in the present Convention to which jurisdictional immunities of States and their property are subject under international law independently of the present Convention, the present Convention shall not apply to any question of jurisdictional immunities of States or their property arising in a proceeding instituted against a State before a court of another State prior to the entry into force of the present Convention for the States concerned. Part II General principles Article 5 State immunity A State enjoys immunity, in respect of itself and its property, from the jurisdiction of the courts of another State subject to the provisions of the present Convention. Article 6 Modalities for giving effect to State immunity 1. A State shall give effect to State immunity under article 5 by refraining from exercising jurisdiction in a proceeding before its courts against another State and to that end shall ensure that its courts determine on their own initiative that the immunity of that other State under article 5 is respected. 2. A proceeding before a court of a State shall be considered to have been instituted against another State if that other State: (a) is named as a party to that proceeding; or (b) is not named as a party to the proceeding but the proceeding in effect seeks to affect the property, rights, interests or activities of that other State. 4