Observe · Regulate · Protect — since 2007. 19th OIMAP General Assembly: Singapore, 10–12 June 2026. Programme
Member States

Joint operations

Coordinated actions between States against the trafficking of cultural property: preparation, conduct and review, with 23 operations in 2024.

Updated : October 28, 2026· 3 min read

23 operations in 2024

Chemin de fer de Toulouse à Bayonne. Pont de l'Aran (en trois arches de 17m d'ouverture chacune). Situation des travaux au 21 juillet 1861, Édouard Baldus (1861)
Chemin de fer de Toulouse à Bayonne. Pont de l'Aran (en trois arches de 17m d'ouverture chacune). Situation des travaux au 21 juillet 1861, Édouard Baldus (1861)

Joint operations bring together the customs, police and cultural services of several States to act together against the trafficking of cultural property. In 2024, the Organization coordinated 23 operations of this kind.

They rest on the trust built through bilateral agreements and on officer training.

  • Operations
  • Trafficking
  • Cooperation

Joint Operations in Figures

23Operations in 2024
360Accredited experts
5Regional offices
24 hBIOP alert time

Source: Member States Relations Directorate.

Distribution

Border controls40% (indicative)
Markets and online sales35% (indicative)
Site inspections25% (indicative)

Nature of the operations carried out, for information.

Why Act Together

The trafficking of cultural property is transnational: an object stolen in one country is exported by a second and sold in a third. No State can fight it alone. Joint operations coordinate inspections in time and space.

They also make it possible to share intelligence that no single service could have gathered.

The Dance at the Court of Herod, Israhel van Meckenem (c. 1500)
The Dance at the Court of Herod, Israhel van Meckenem (c. 1500)
Seven Jeweled Mountain (late 1800s)
Seven Jeweled Mountain (late 1800s)
Portrait of John VIII Palaoelogus, Emperor of Constantinople, 1424-1428 (reverse), Pisanello (c. 1438–1439)
Portrait of John VIII Palaoelogus, Emperor of Constantinople, 1424-1428 (reverse), Pisanello (c. 1438–1439)

Preparation

An operation begins with a risk analysis: routes, periods, categories of property. Participating States designate coordinators, agree on rules for exchanging information and set measurable objectives.

The Organization provides a secure platform and the BIOP alert system, which makes it possible to report a theft or loss within 24 hours.

Conduct

The operation generally takes place over a few days or weeks. Teams check crossings, inspect markets, warehouses and online sales, and communicate in real time with the coordination centre.

Accredited experts can be mobilized to identify suspect property on site.

Review and Follow-up

At the end of the operation, a quantified review is drawn up: property identified, seized, returned, proceedings initiated. Lessons learned are shared with all focal points.

Seized property may give rise to restitutions under the applicable agreements.

Roles in an Operation

Four actors
ActorRoleExample
CustomsInspection of goodsBorder posts
PoliceInvestigationMarkets, warehouses
Cultural servicesIdentificationMuseums, archaeologists
OIMAPCoordinationPlatform and experts

Milestones

  1. First operation

    Between two States.

  2. Shared platform

    Secure exchanges.

  3. Online inspections

    Digital sales.

  4. 23 operations

    Annual record.

Confidentiality

Mercury (Budha), from a Mandi Astrology Series, Sanju (c. 1810)
Mercury (Budha), from a Mandi Astrology Series, Sanju (c. 1810)
The Victory Banquet: from Battle Scenes of the Quelling of Rebellions in the Western Regions, with Imperial Poems (c. 1765–74; poem dated 1760)
The Victory Banquet: from Battle Scenes of the Quelling of Rebellions in the Western Regions, with Imperial Poems (c. 1765–74; poem dated 1760)
Arrival of the "Southern Barbarians" (c. 1600)
Arrival of the "Southern Barbarians" (c. 1600)

One-off or Permanent Operation

Carnet (1863–1865)

One-off

A few weeks
  • Specific objective
  • Dedicated team
  • Quick review

For an identified threat.

Seal Color Box (1662–1722)

Permanent

Lasting cooperation
  • Continuous exchange
  • Mixed teams
  • Regular monitoring

For a recurring risk.

Setting Up an Operation

  1. Analyse

    The risks.

  2. Agree

    On the framework.

  3. Designate

    The coordinators.

  4. Act

    In the field.

  5. Evaluate

    The results.

Before Launching

A Brigade Chief

The Triumph of Mordecai, Lucas van Leyden (1515)
« Working with colleagues from another country on the same operation gave us a perspective we would never have had alone. »
Camille Roussel, brigade chief (example)

Vocabulary

Joint operation
Coordinated action between several States.
Risk analysis
Assessment of threats.
Seizure
Taking possession of property.
BIOP alert
Report of theft or loss.

Respect for the Law

Operations respect the national law of each State: competences of services, conditions of seizure, data protection and rights of defence. A common legal framework specifies the arrangements for exchanging information.

No operation may take place without the prior agreement of the competent judicial authorities.

Frequently Asked Questions

How many operations in 2024?

23 coordinated operations.

Who leads?

The participating States, with OIMAP's support.

Is the data protected?

Yes, through a common legal framework.

How to take part?

Useful Documents

Contacts

The Apotheosis of Romulus: Design for a Ceiling, Domenico Maria Canuti (c. 1675–76)
The Apotheosis of Romulus: Design for a Ceiling, Domenico Maria Canuti (c. 1675–76)
Member States Relations DirectorateParis — Headquarters+33 1 00 00 08 00membres@oimap.exampleMonday to Friday, 9 a.m.–5 p.m.

Contact your focal point

Nuova pianta di Roma data in luce da Giambattista Nolli l’anno MDCCXLVII, known as La Pianta Grande di Roma, Giovanni Battista Nolli (1748)

Each State's entry point.

Focal points
Image credits (17)
  • Coronation of the Virgin, Christoffel Jegher (1632–36) — Cleveland Museum of Art, CC0 1.0
  • Chemin de fer de Toulouse à Bayonne. Pont de l'Aran (en trois arches de 17m d'ouverture chacune). Situation des travaux au 21 juillet 1861, Édouard Baldus (1861) — Cleveland Museum of Art, CC0 1.0
  • The Dance at the Court of Herod, Israhel van Meckenem (c. 1500) — Cleveland Museum of Art, CC0 1.0
  • Seven Jeweled Mountain (late 1800s) — Cleveland Museum of Art, CC0 1.0
  • Portrait of John VIII Palaoelogus, Emperor of Constantinople, 1424-1428 (reverse), Pisanello (c. 1438–1439) — Cleveland Museum of Art, CC0 1.0
  • Mercury (Budha), from a Mandi Astrology Series, Sanju (c. 1810) — Cleveland Museum of Art, CC0 1.0
  • The Victory Banquet: from Battle Scenes of the Quelling of Rebellions in the Western Regions, with Imperial Poems (c. 1765–74; poem dated 1760) — Cleveland Museum of Art, CC0 1.0
  • Arrival of the "Southern Barbarians" (c. 1600) — Cleveland Museum of Art, CC0 1.0
  • Carnet (1863–1865) — Cleveland Museum of Art, CC0 1.0
  • Seal Color Box (1662–1722) — Cleveland Museum of Art, CC0 1.0
  • The Triumph of Mordecai, Lucas van Leyden (1515) — Cleveland Museum of Art, CC0 1.0
  • The Apotheosis of Romulus: Design for a Ceiling, Domenico Maria Canuti (c. 1675–76) — Cleveland Museum of Art, CC0 1.0
  • Nuova pianta di Roma data in luce da Giambattista Nolli l’anno MDCCXLVII, known as La Pianta Grande di Roma, Giovanni Battista Nolli (1748) — Cleveland Museum of Art, CC0 1.0
  • Nuova pianta di Roma data in luce da Giambattista Nolli l’anno MDCCXLVII, known as La Pianta Grande di Roma, Giovanni Battista Nolli (1748) — Cleveland Museum of Art, CC0 1.0
  • Seal of Doge Michele Steno (reverse) (1400–1409) — Cleveland Museum of Art, CC0 1.0
  • View of Venice, Jacopo de' Barbari (1500) — Cleveland Museum of Art, CC0 1.0
  • Nuova pianta di Roma data in luce da Giambattista Nolli l’anno MDCCXLVII, known as La Pianta Grande di Roma, Giovanni Battista Nolli (1748) — Cleveland Museum of Art, CC0 1.0
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