Diplomatic Bag

Concept Diplomatic Practice Preferred

Sealed container of official diplomatic correspondence or goods, which the receiving State may neither open nor detain.

Independent referenceNot an official or legal definition
Sources citedSee the sources at the end of this page
Status Under reviewLast updated 11 October 2026
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Definition

In plain language

A diplomatic bag is a sealed bag or crate in which a government sends official papers and equipment to its embassies. The host country is not allowed to open it or hold it back.

Academic definition

Article 27 of the 1961 Vienna Convention on Diplomatic Relations protects a mission's freedom of official communication and states that the diplomatic bag shall not be opened or detained, but it may contain only diplomatic documents or articles intended for official use and the packages must bear visible external marks of their character. Some States have entered reservations asserting a right to request opening where abuse is suspected, which other parties have contested. The ILC's 1989 draft articles on the courier and the unaccompanied bag aimed to clarify the regime but did not become a treaty.

Classification

Term type
Concept
Category
Diplomatic Practice
Subject field
Diplomatic Law
Subfield
Diplomatic Communications
Difficulty level
Beginner
Grammatical category
noun phrase

Language variants

Alternative terms
  • diplomatic pouch
  • diplomatic valise
Non-preferred terms
  • not_applicable
Abbreviations
  • not_applicable
Acronyms
  • not_applicable
Native terms
  • valise diplomatique (French)
Transliteration
not_applicable
Pronunciation
dip-luh-MAT-ik bag

Context

Legal effect: Binding

Scope

Covers the bag itself and its inviolability; the person carrying it is dealt with under 'Diplomatic Courier', and the consular equivalent, which allows a request for opening, is treated in 'Consular Bag'.

Legal context

VCDR Article 27(3) and (4); Article 36(2) covers a diplomat's personal baggage, which may be inspected on serious grounds. After the Dikko affair of 1984, in which a kidnapped Nigerian exile was found in a crate at Stansted airport, the United Kingdom reviewed its practice but concluded that the Convention rules must be respected.

Diplomatic context

Bags carry cables, passports and equipment on scheduled courier rounds, and suspected abuse is handled through protests, requests for return or, with consent, scanning.

Institutional context

Handled by foreign ministry courier services and mission security staff, with customs services expected to let the bag pass unopened.

Historical context

Protection of diplomatic correspondence has long been customary, and the modern rule was codified in 1961.

Why it matters

Secure transport of confidential material is basic to running a mission, and weakening the rule would expose every State's bags to inspection.

Usage

Register: Formal Diplomatic

Usage note

'Pouch' is a common American synonym; 'bag' is the Convention term.

Example

The ministry sent the draft treaty to its embassy in a sealed diplomatic bag.

Example scenario

Customs officers at State B's airport suspect a large crate marked as a diplomatic bag holds contraband. They may not open it, so they protest to State A and ask for its return; if misuse is proved, they may expel the staff involved.

Common misuse

Treating a diplomat's own luggage as a diplomatic bag; personal baggage is not covered by Article 27.

Not to be confused with

  • Diplomatic courier (the carrier)
  • Consular bag
  • Personal baggage of diplomats

Sources

  1. Vienna Convention on Diplomatic Relations (1961), United Nations, Article 27(3)-(4). legal.un.org
  2. Official definition. not_found_in_source
  3. Treaty reference. legal.un.org
  4. Denza, Diplomatic Law: Commentary on the Vienna Convention on Diplomatic Relations. not_found_in_source
  5. International Law Commission, Draft articles on the status of the diplomatic courier and the diplomatic bag not accompanied by diplomatic courier (1989). legal.un.org

Source type: Treaty. Source reliability: Primary.

This entry is an independent reference definition, not an official or legally binding text. Where an official definition exists, it is linked above and is authoritative. Read our methodology.

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