Diplomatic relations — Immunity — Diplomatic agent — Immunity of diplomatic agent after termination of diplomatic status — Vienna Convention on Diplomatic Relations, 1961, Article 39(2) — Acts performed in the exercise of diplomat's functions as member of the mission — Scope of functions — Police liaison officer — Officer performing police functions — Whether functions as a diplomatic agent separate from functions as a police officer — Waiver — Authority to waive immunity — Undertaking given by diplomatic agent to court — Whether sufficient to constitute waiver

State immunity — Jurisdictional immunity — Entitlement to immunity — Departments of government — Whether police a part of the government for purposes of immunity — Whether State immunity also protects individual official from suit — Relationship between State and diplomatic immunity — The law of England