International law in general — Relation to municipal law — Immunities of international officials — Determination by Executive certificate — The law of the Philippines

Specialized Agencies of the United Nations — World Health Organization — Officials — Immunity — Exemption from search of official's property — The law of the Philippines

International officials — Privileges and immunities — Extent Convention on the Privileges and Immunities of the Specialized Agencies — Application of — Respective roles of Executive and Judiciary — The law of the Philippines — Conclusiveness of executive certificate — The law of the Philippines

Diplomatic privileges — Right of other persons to privileges and immunities — Officials of international organizations — Convention on the Privileges and Immunities of the Specialized Agencies of the United Nations — Immunity from search of official's property — Conclusiveness of executive certificate of entitlement to immunity — The law of the Philippines