A/RES/59/38 (c) it has been established that the property is specifically in use or intended for use by the State for other than government non-commercial purposes and is in the territory of the State of the forum, provided that post-judgment measures of constraint may only be taken against property that has a connection with the entity against which the proceeding was directed. Article 20 Effect of consent to jurisdiction to measures of constraint Where consent to the measures of constraint is required under articles 18 and 19, consent to the exercise of jurisdiction under article 7 shall not imply consent to the taking of measures of constraint. Article 21 Specific categories of property 1. The following categories, in particular, of property of a State shall not be considered as property specifically in use or intended for use by the State for other than government non-commercial purposes under article 19, subparagraph (c): (a) property, including any bank account, which is used or intended for use in the performance of the functions of the diplomatic mission of the State or its consular posts, special missions, missions to international organizations or delegations to organs of international organizations or to international conferences; (b) property of a military character or used or intended for use in the performance of military functions; (c) property of the central bank or other monetary authority of the State; (d) property forming part of the cultural heritage of the State or part of its archives and not placed or intended to be placed on sale; (e) property forming part of an exhibition of objects of scientific, cultural or historical interest and not placed or intended to be placed on sale. 2. Paragraph 1 is without prejudice to article 18 and article 19, subparagraphs (a) and (b). Part V Miscellaneous provisions Article 22 Service of process 1. Service of process by writ or other document instituting a proceeding against a State shall be effected: (a) in accordance with any applicable international convention binding on the State of the forum and the State concerned; or (b) in accordance with any special arrangement for service between the claimant and the State concerned, if not precluded by the law of the State of the forum; or (c) in the absence of such a convention or special arrangement: (i) by transmission through diplomatic channels to the Ministry of Foreign Affairs of the State concerned; or 10