Diplomatic and consular intercourse and privileges — Right of other persons to privileges and immunities — Officials of international tribunals — Member of international bureau of Permanent Court of Arbitration — Exemption from municipal taxation — Scope of exemption — Whether exempt income may be taken into account in assessing rate of taxation on other sources of income — The law of the Netherlands

Treaties — Conclusion and operation of — Constitutional limitations — Netherlands Constitution, Article 66 — Judicial review of municipal legislation for compatibility with international law — Whether limited to self-executing provisions of treaties — The law of the Netherlands

International law in general — Relation to municipal law — Judicial review of municipal legislation — Power of municipal courts to review legislation for compatibility with international law Whether confined to determining compatibility with treaty provisions — Netherlands Constitution, Article 66 — International officials — Taxation — Whether rule of customary law forbidding taxation of salary received from Permanent Court of Arbitration — The law of the Netherlands