Diplomatic Immunity in the United Kingdom: Legal Framework

Yes, the UK Operates a Full Diplomatic Immunity Regime

The United Kingdom grants diplomatic immunity under the Diplomatic Privileges Act 1964, which incorporates the Vienna Convention on Diplomatic Relations (1961) into domestic law.

Who Receives Immunity

• Accredited diplomatic agents (ambassadors, envoys, counselors, attachés).
• Administrative and technical staff of missions.
• Service staff (limited immunity for official acts).
• Family members forming part of the household.

Key Privileges & Immunities

• Immunity from criminal jurisdiction of UK courts (cannot be arrested, detained, prosecuted).
• Immunity from civil/administrative jurisdiction (exceptions: private immovable property, succession, professional/commercial activity outside official functions).
• Inviolability of person, residence, papers, correspondence.
• Exemption from taxes (except indirect taxes, property taxes on private property, inheritance tax on private assets).
• Freedom of communication: Diplomatic bags (inviolable), couriers, codes.
• Right to fly national flag, display coat of arms on mission premises and residence.

Limits & Enforcement

• Not absolute: The sending state can waive immunity.
• Persona non grata: UK can expel any diplomat without explanation; they must leave within a reasonable period.
• Serious crimes: While immune from prosecution, diplomats committing serious offenses (espionage, violent crime) are typically expelled; the UK may request waiver for prosecution.
• Traffic offenses: Common friction point; diplomatic missions generally cooperate on fines/penalties voluntarily.

Administration

The Foreign, Commonwealth & Development Office (FCDO) manages accreditation, maintains the Diplomatic List, and liaises with the Home Office, Met Police, and courts on immunity matters.