International organizations — Immunity — Immunity from jurisdiction — Immunity from execution — Convention on the Immunities and Privileges of the Specialized Agencies of the United Nations, 1947 — Extent of immunity conferred — Effect given to the 1947 Convention in the law of the United Kingdom — International Organizations Act 1968 — Specialized Agencies of the United Nations (Immunities and Privileges) Order 1974 — UNESCO — Whether grant of immunity compatible with European Convention on Human Rights — Whether immunity dependent upon existence of an alternative forum for resolution of dispute

Human rights — Access to court — European Convention on Human Rights, Article 6 — Immunity of international organization from jurisdiction of national courts — Whether incompatible with rights under Article 6 — Whether compliance with international legal obligations a legitimate aim — Whether justifying restriction on right of access to court

Relationship of international law and municipal law — Treaties — Customary international law — International law on immunities of international organizations — UNESCO — Application in English law — Relationship with rights under European Convention on Human Rights

Treaties — Interpretation — Principles of interpretation codified in Vienna Convention on the Law of Treaties, 1969, Articles 31-3 — Good faith — Convention on the Immunities and Privileges of the Specialized Agencies of the United Nations, 1947 — Whether to be interpreted in light of the European Convention on Human Rights — The law of England