About this topic
The law of diplomatic envoys explains who a diplomat is, what a diplomatic mission does, what privileges and immunities a diplomat enjoys in the receiving State, and what limits keep a diplomat answerable. The subject is best approached through a practical problem.
The problem: At nine in the evening in New Delhi, a car belonging to a foreign embassy jumps a red light and knocks down a young man, Farhan, who is riding a scooter. His leg is broken. The person at the wheel is a diplomat of that embassy. A traffic constable rushes to the spot.
- Can the constable arrest the diplomat?
- Can the police open the boot of the car and search it?
- Can Farhan sue the diplomat for compensation in a court in Delhi?
All three questions are answered by one treaty, the Vienna Convention on Diplomatic Relations. The answers are worked out at the end of these notes.
The Vienna Convention on Diplomatic Relations, 1961
Historical background
- For centuries, the rules about envoys existed only as custom.
- The Congress of Vienna, 1815 settled only one narrow question: the ranks of diplomats and their order of precedence.
- The complete code came much later. At the request of the United Nations General Assembly, the International Law Commission prepared draft articles, and on that basis the Convention was concluded.
Key facts about the Convention
- Concluded at Vienna on 18 April 1961.
- Entered into force on 24 April 1964.
- Contains 53 Articles.
- About 193 States are parties to it.
- India gave the Convention the force of law through the Diplomatic Relations (Vienna Convention) Act, 1972.
Companion treaties
| Treaty | What it governs |
|---|---|
| Vienna Convention on Diplomatic Relations, 1961 | Permanent diplomatic missions and diplomatic agents |
| Vienna Convention on Consular Relations, 1963 | Consuls |
| Convention on Special Missions, 1969 | Temporary missions sent for a particular task |
Theories of diplomatic immunity
Why is a foreign official beyond the reach of the local police at all? Three theories have been offered.
1. Extraterritoriality theory
This is the oldest theory. It says that an embassy, and even the diplomat himself, should be treated as if they were outside the receiving State, as though a piece of the sending State had been placed in the middle of the receiving State's capital (for example, in the middle of Delhi).
A French diplomat's baby is born inside the French Embassy in New Delhi. Is the baby born in France? No. The embassy stands on Indian territory, and the birth takes place in India.
Indian law handles this very situation through a rule about immunity, not through any fiction of foreign soil. Under Section 3(2)(a) of the Citizenship Act, 1955, a person born in India is not a citizen by birth if, at the time of his birth:
"either his father or mother possesses such immunity from suits and legal process as is accorded to an envoy of a foreign sovereign power accredited to the President of India and he or she, as the case may be, is not a citizen of India".
Modern law treats extraterritoriality only as a metaphor. The embassy is not foreign land. It is land of the receiving State (for example, Indian land) which the authorities of that State cannot enter without permission.
2. Representative character theory
A diplomat speaks in the name of a State. In earlier times, the envoy was seen as the personal representative of the king, so an insult to the envoy was an insult to the king himself. Arresting an ambassador would be like putting the sending State itself into a police van.
- Strength: it explains why official acts are protected.
- Weakness: it does not explain why a diplomat's private acts, such as private shopping or a holiday, are also covered.
3. Functional necessity theory
This is the theory modern law prefers. The protection is given to the function (the job), not to the person.
Think of a cricket umpire. If every batsman given out could drag the umpire to court, no umpire would raise his finger honestly. The protection is given to the umpire's job, not to the umpire as a person. In the same way, a diplomat who could be jailed on a trumped-up charge would think twice before sending an honest report or taking a firm stand in a negotiation.
The preamble of the Convention accepts this reasoning:
"the purpose of such privileges and immunities is not to benefit individuals but to ensure the efficient performance of the functions of diplomatic missions as representing States".
Note the last three words of the preamble, "as representing States". The Convention blends functional necessity with representative character, and it leaves extraterritoriality behind.
| Theory | Basic idea | Position today |
|---|---|---|
| Extraterritoriality | The embassy and the diplomat are treated as if outside the receiving State | Only a metaphor; the embassy is land of the receiving State; left behind by the Convention |
| Representative character | The diplomat represents the sending State (earlier, the king personally) | Explains protection of official acts, not private acts; blended into the Convention |
| Functional necessity | Protection is given to the job, so that the mission can function efficiently | Preferred by modern law; accepted in the preamble |
Functions of a diplomatic mission: Article 3
If protection follows the job, the job must be known. Article 3(1) says that the functions of a diplomatic mission consist, "inter alia" (that is, among other things), in five tasks:
- Representation: "Representing the sending State in the receiving State".
- Protection: "Protecting in the receiving State the interests of the sending State and of its nationals, within the limits permitted by international law".
- Negotiation: "Negotiating with the Government of the receiving State".
- Ascertaining and reporting: "Ascertaining by all lawful means conditions and developments in the receiving State, and reporting thereon to the Government of the sending State".
- Promotion of friendly relations: "Promoting friendly relations between the sending State and the receiving State, and developing their economic, cultural and scientific relations".
The five functions seen through an Indian mission abroad:
- Representing: the Indian Ambassador attends a national day ceremony in Tokyo.
- Protecting: Indian fishermen are arrested by a neighbouring country's coast guard; the mission seeks access to them and arranges legal help, but only within what international law permits.
- Negotiating: India wants a new visa arrangement for its engineers, and the mission negotiates it.
- Reporting: reading newspapers, attending public debates, meeting ministers and sending analysis home is lawful reporting. Bribing a defence clerk for a secret file is espionage, not diplomacy, because the Convention insists on "all lawful means".
- Promoting friendly relations: the mission organises a film festival or a tea trade fair.
Consular functions by a diplomatic mission: Article 3(2)
"Nothing in the present Convention shall be construed as preventing the performance of consular functions by a diplomatic mission."
If an Indian tourist's passport is stolen in Rome, the consular section of the Indian Embassy there can issue an emergency travel document.
Establishment of missions and classes of diplomats
Consent is needed twice
- Article 2 (mutual consent): "The establishment of diplomatic relations between States, and of permanent diplomatic missions, takes place by mutual consent."
- Article 4 (agrément): the sending State must first make certain that the receiving State has given its agrément, that is, its prior approval, for the person proposed as head of the mission.
A State cannot simply post an ambassador wherever it likes. Diplomatic relations need mutual consent (Article 2), and the head of mission needs the receiving State's agrément (Article 4).
Diplomatic agent: Article 1
A "diplomatic agent" is "the head of the mission or a member of the diplomatic staff of the mission". The diplomatic staff means staff members having diplomatic rank. Clerks, drivers and cooks belong to the mission, but they are not diplomatic agents.
Classes of heads of mission: Article 14(1)
- "That of ambassadors or nuncios accredited to Heads of State, and other heads of mission of equivalent rank".
- "That of envoys, ministers and internuncios accredited to Heads of State".
- "That of chargés d'affaires accredited to Ministers for Foreign Affairs".
- Nuncio: the ambassador of the Holy See.
- Accredited: formally sent to and received by that authority.
- High Commissioner: between Commonwealth countries, such as India and Australia, the head of mission of ambassador rank is called a High Commissioner, who falls among the "other heads of mission of equivalent rank".
| Class | Who | Accredited to |
|---|---|---|
| First | Ambassadors, nuncios and other heads of mission of equivalent rank (for example, High Commissioners) | Heads of State |
| Second | Envoys, ministers and internuncios | Heads of State |
| Third | Chargés d'affaires | Ministers for Foreign Affairs |
Does the class change the legal protection? Article 14(2)
"Except as concerns precedence and etiquette, there shall be no differentiation between heads of mission by reason of their class."
The class of a head of mission matters only for precedence and etiquette. It shows up in the seating plan at a state banquet, never in the courtroom.
Consuls
Consuls form a separate family. They deal mainly with passports, visas, trade and help to their nationals, and they enjoy narrower immunities, mostly for their official acts.
Privileges and immunities: the four B's
To remember the privileges, think of four B's: the Building (premises), the Bag (communication), the Body (the person and immunity from courts) and the Bill (taxes and duties).
1. The Building: inviolability of premises
Article 22: three rules
- Article 22(1), inviolability: "The premises of the mission shall be inviolable. The agents of the receiving State may not enter them, except with the consent of the head of the mission."
- Article 22(2), special duty to protect: "The receiving State is under a special duty to take all appropriate steps to protect the premises of the mission against any intrusion or damage and to prevent any disturbance of the peace of the mission or impairment of its dignity."
- Article 22(3), immunity from search and seizure: "The premises of the mission, their furnishings and other property thereon and the means of transport of the mission shall be immune from search, requisition, attachment or execution."
Article 22(2) imposes a positive duty: the receiving State (for example, India) must not merely stay out of the embassy; it must actively guard it.
Under Article 22(3), if a civic body wants to take over part of an embassy compound to widen a road, or a creditor asks a court to seize an embassy car, the law says no.
The diplomat's home: Article 30
"The private residence of a diplomatic agent shall enjoy the same inviolability and protection as the premises of the mission."
The diplomat's papers, correspondence and, subject to a narrow exception, his property are also inviolable.
2. The Bag: freedom of communication
Article 27
- The receiving State must permit and protect free communication by the mission for all official purposes, including through diplomatic couriers and messages in code or cipher.
- One limit: "the mission may install and use a wireless transmitter only with the consent of the receiving State".
- Official correspondence is inviolable.
- Article 27(3): "The diplomatic bag shall not be opened or detained."
- Article 27(4), safeguard: "The packages constituting the diplomatic bag must bear visible external marks of their character and may contain only diplomatic documents or articles intended for official use."
- The courier carrying the bag cannot be arrested or detained.
The diplomatic bag is not a suitcase of clothes. It is the official consignment moving between a government and its mission.
Personal baggage: Article 36(2)
The diplomat's own suitcase is treated differently. Personal baggage is exempt from inspection unless there are serious grounds for presuming that it contains:
- articles outside the exemptions, or
- articles whose import or export is prohibited by law or controlled by quarantine regulations.
Even then, the inspection takes place only in the presence of the diplomat or an authorised representative.
Customs officers who seriously suspect ivory in a diplomat's personal suitcase may inspect it in the diplomat's presence, but a properly marked diplomatic bag can never be opened.
| Point | Diplomatic bag (Article 27) | Personal baggage (Article 36(2)) |
|---|---|---|
| Nature | Official consignment between a government and its mission | The diplomat's own suitcase |
| Can it be opened? | Never; it shall not be opened or detained | Exempt from inspection, unless there are serious grounds for presuming it contains non-exempt, prohibited or quarantine-controlled articles |
| Safeguard | Must bear visible external marks and contain only diplomatic documents or articles for official use | Inspection only in the presence of the diplomat or an authorised representative |
3. The Body: personal inviolability and immunity from jurisdiction
Personal inviolability: Article 29
"The person of a diplomatic agent shall be inviolable. He shall not be liable to any form of arrest or detention. The receiving State shall treat him with due respect and shall take all appropriate steps to prevent any attack on his person, freedom or dignity."
Freedom of movement: Article 26
All members of the mission may travel freely in the receiving State, subject to its laws on zones that are prohibited or regulated for national security.
A diplomat may drive to any hill station, but not into a restricted defence area.
Immunity from jurisdiction: Article 31(1)
"A diplomatic agent shall enjoy immunity from the criminal jurisdiction of the receiving State. He shall also enjoy immunity from its civil and administrative jurisdiction, except in the case of"
The three exceptions to civil and administrative immunity are:
- Real action on private immovable property: "A real action relating to private immovable property situated in the territory of the receiving State, unless he holds it on behalf of the sending State for the purposes of the mission".
- Succession: "An action relating to succession in which the diplomatic agent is involved as executor, administrator, heir or legatee as a private person and not on behalf of the sending State".
- Professional or commercial activity: "An action relating to any professional or commercial activity exercised by the diplomatic agent in the receiving State outside his official functions".
Criminal immunity has no exception at all. Civil immunity has three exceptions, and all three concern the diplomat's private life. A real action is a case about rights in the property itself.
| Jurisdiction | Immunity | Exceptions |
|---|---|---|
| Criminal | Full immunity | None |
| Civil and administrative | Immunity | Three: real action on private immovable property; succession as a private person; private professional or commercial activity |
- Real action: a diplomat posted in London privately owns a country cottage in England, and the neighbour disputes the boundary. The English court can decide it.
- Succession: a local friend dies leaving a will that names the diplomat as executor. A dispute over that estate can be heard locally.
- Commercial activity: the diplomat earns fees from a private consultancy. Immunity is no defence when a client sues.
Related rules
- Article 42: a diplomatic agent is forbidden from practising for personal profit any professional or commercial activity in the receiving State.
- Article 31(2), no duty to give evidence: "A diplomatic agent is not obliged to give evidence as a witness."
- Article 31(3), execution: even in the three exceptional cases, a judgment can be executed only without infringing the inviolability of his person or his residence.
- Article 31(4), sending State's jurisdiction: "The immunity of a diplomatic agent from the jurisdiction of the receiving State does not exempt him from the jurisdiction of the sending State."
4. The Bill: exemption from taxes and duties
Article 34
Article 34 begins: "A diplomatic agent shall be exempt from all dues and taxes, personal or real, national, regional or municipal, except" six items:
- Indirect taxes: "Indirect taxes of a kind which are normally incorporated in the price of goods or services".
- Taxes on private immovable property, unless it is held for the mission.
- Estate, succession or inheritance duties, subject to Article 39.
- Taxes on private income having its source in the receiving State, and capital taxes on investments in commercial undertakings there.
- Charges for specific services, such as an electricity bill.
- Registration, court or record fees, mortgage dues and stamp duty relating to immovable property.
When a diplomat fills petrol, the taxes are hidden inside the price per litre. The Convention gives no right to have them taken out.
Customs duties: Article 36
Article 36 exempts from customs duties articles for the official use of the mission, and articles for the personal use of the diplomat and the household.
Persons entitled to privileges: Article 37
The four B's belong in full to the diplomatic agent. Article 37 draws four circles for the people around the diplomat.
| Category | Condition | Privileges and immunities |
|---|---|---|
| 1. Members of the family forming part of the household | "if they are not nationals of the receiving State" | The privileges and immunities in Articles 29 to 36 |
| 2. Administrative and technical staff, and their families | Neither nationals nor permanent residents of the receiving State | The privileges in Articles 29 to 35; but immunity from civil and administrative jurisdiction does not extend to acts outside the course of their duties, and the customs exemption covers only articles imported at the time of first installation |
| 3. Service staff (such as the mission's cooks and drivers) | Neither nationals nor permanent residents | Immune only for acts performed in the course of their duties; exempt from tax on their wages and from social security provisions |
| 4. Private servants of members of the mission | Neither nationals nor permanent residents | Exempt only from tax on their wages |
Anything more for these persons depends on the receiving State, which must still exercise its jurisdiction without unduly interfering with the mission.
An Indian diplomat posted in Tokyo marries a Japanese citizen. Does her husband enjoy immunity in Japan? No. He is a national of the receiving State, so the condition in Article 37 is not met.
Diplomats who are nationals or permanent residents: Article 38(1)
"Except insofar as additional privileges and immunities may be granted by the receiving State, a diplomatic agent who is a national of or permanently resident in that State shall enjoy only immunity from jurisdiction, and inviolability, in respect of official acts performed in the exercise of his functions."
Article 37 and Article 38(1) follow the same logic: a State rarely gives up control over its own people.
Transit through third States: Article 40
The protection also travels. If a diplomat passes through a third State, which has granted a visa where one was needed, while:
- going to take up a post,
- returning to the post, or
- returning home,
that third State must give inviolability and such other immunities as are required for the transit or return. Accompanying family members are covered too.
An Indian diplomat flying to a new post in Brasília with a halt in Dubai is protected during that halt.
Limits on immunity: the fifth B, the Boundary
The protection looks enormous, so a fifth B is added: the Boundary, meaning the limits that keep diplomats answerable. There are four boundaries.
1. Duty to respect local law: Article 41
- Article 41(1): "Without prejudice to their privileges and immunities, it is the duty of all persons enjoying such privileges and immunities to respect the laws and regulations of the receiving State. They also have a duty not to interfere in the internal affairs of that State."
- Article 41(3): the mission premises must not be used in any manner incompatible with the functions of the mission.
Immunity closes the door of the local court. It never hands anyone a free pass to break the law.
2. Waiver: Article 32
- The sending State may waive the immunity.
- "Waiver must always be express."
- Only the State can give it up, not the diplomat personally, since the protection was created for the State's benefit.
- Counter-claims: a diplomat who starts a case cannot claim immunity against a counter-claim directly connected with that case.
- Execution: a waiver for civil or administrative proceedings does not cover the execution of the judgment. A separate waiver is necessary for execution.
3. Persona non grata: Article 9
This is the strongest boundary. Persona non grata means an unwelcome person.
Article 9(1): "The receiving State may at any time and without having to explain its decision, notify the sending State that the head of the mission or any member of the diplomatic staff of the mission is persona non grata or that any other member of the staff of the mission is not acceptable. In any such case, the sending State shall, as appropriate, either recall the person concerned or terminate his functions with the mission. A person may be declared non grata or not acceptable before arriving in the territory of the receiving State."
Article 9(2): "If the sending State refuses or fails within a reasonable period to carry out its obligations under paragraph 1 of this article, the receiving State may refuse to recognize the person concerned as a member of the mission."
- The declaration can be made at any time and without giving reasons.
- "Persona non grata" is used for the head of mission and the diplomatic staff; "not acceptable" for any other member of the staff.
- A person may be declared non grata even before arriving in the receiving State.
- The sending State must recall the person or terminate his functions with the mission.
The receiving State cannot arrest a diplomat, but it can always send the diplomat home.
4. Time: Article 39
- Beginning: privileges begin when the person enters the receiving State to take up the post or, if already there, when the appointment is notified to the Foreign Ministry.
- End, Article 39(2): "When the functions of a person enjoying privileges and immunities have come to an end, such privileges and immunities shall normally cease at the moment when he leaves the country, or on expiry of a reasonable period in which to do so, but shall subsist until that time, even in case of armed conflict. However, with respect to acts performed by such a person in the exercise of his functions as a member of the mission, immunity shall continue to subsist."
Official acts stay protected forever, while protection for private acts ends with the posting.
Solving the opening problem
Return to Farhan, knocked down in Delhi by a diplomat driving an embassy car.
- Can the constable arrest the diplomat? No. Article 29 forbids any form of arrest or detention. The constable can, however, record the facts and report them.
- Can the police search the car? No. A mission car is immune from search under Article 22, and a diplomat's own car is protected as personal property under Article 30.
- Can Farhan sue in a Delhi court? A road accident is not a real action, not a succession matter and not a commercial activity. It falls outside all three exceptions in Article 31(1), so the diplomat can plead immunity.
Farhan is still not without remedy:
- India can ask the sending State to waive immunity (Article 32).
- Immunity in India does not exempt the diplomat from the jurisdiction of the sending State (Article 31(4)), so a claim may be possible there.
- If the sending State does nothing, India can declare the diplomat persona non grata (Article 9).
Quick revision
- The rulebook is the Vienna Convention on Diplomatic Relations, 1961.
- The reason for immunity is functional necessity, blended with representative character.
- The functions of a mission are in Article 3, and the classes of heads of mission are in Article 14.
- The protection has four B's: the Building, the Bag, the Body and the Bill.
- The fifth B, the Boundary (duty to respect law, waiver, persona non grata and time limits), keeps that protection honest.
