International organization and administration — International officials — European Organization for Nuclear Research — Senior official — Scope of entitlement to immunity from jurisdiction of municipal courts and immunity from execution — CERN — Switzerland Headquarters Agreement, 1955 — Whether immunity extends to wife of official — The law of Switzerland

Diplomatic and consular intercourse and privileges — Right of other persons to privileges and immunities — Officials of international organizations — Senior official of European Organization for Nuclear Research (CERN) — Scope of entitlement to immunity from jurisdiction of municipal courts and immunity from execution — CERN-Switzerland Headquarters Agreement, 1955 — Whether immunity extends to wife of official — Execution of judgment debt against wife relating to lawyer's fees incurred in court proceedings where immunity waived — Claim to immunity by wife — Whether operates retroactively — Suspension of proceedings pending decision by CERN on waiver — The law of Switzerland