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

Fighting illicit trafficking

Understanding and combating trafficking in cultural property: overview, networks, reports and international cooperation.

Updated : October 28, 2026· 4 min read

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A trafficking that adapts

A Rocky Cove with Fishing Boats, Allart van Everdingen (late 1650s)
A Rocky Cove with Fishing Boats, Allart van Everdingen (late 1650s)

Trafficking in cultural property is one of the most lucrative illicit trades, alongside drugs and arms according to several international organisations. It affects every continent: looting of sites, museum theft, smuggling, fakes, laundering.

The amounts are hard to establish because the phenomenon is clandestine. The OIMAP Observatory estimates, as an indication, that worldwide trafficking is worth between 3 and 6 billion euros a year.

The section presents an overview, a description of the networks and a summary of the annual reports.

  • Trafficking
  • Looting
  • Cooperation

Fighting illicit trafficking in figures

€3–6 bnIndicative estimate of annual trafficking
23Coordinated operations in 2024
847Works restituted since 2007
8,940Officers trained

Source: OIMAP Heritage Protection Department.

Breakdown

Archaeological looting36%
Theft from collection or museum28%
Smuggling18%
Fakes and laundering18%

Components of trafficking (indicative).

A criminal chain

Trafficking follows a chain: looting or theft upstream, local intermediaries, carriers, receivers, unscrupulous dealers and, finally, buyers. At each link, provenance is blurred: false certificates, transit countries, successive sales.

Fighting trafficking means acting on each link: securing sites, controlling borders, training officers, making operators accountable and raising buyers' awareness. OIMAP works at each of these levels.

The Calumny of Apelles, Giorgio Ghisi (1560)
The Calumny of Apelles, Giorgio Ghisi (1560)
Bridge of Shops, Srinagar, Kashmir, Samuel Bourne (1864)
Bridge of Shops, Srinagar, Kashmir, Samuel Bourne (1864)
Head of Bearded Banqueter (525–500 BCE)
Head of Bearded Banqueter (525–500 BCE)

A trafficking linked to other offences

Trafficking in cultural property often overlaps with other offences: money laundering, tax fraud, corruption, financing of criminal organisations. Investigations conducted with INTERPOL and the WCO show that these networks use methods similar to those of other trafficking.

That is why the fight rests on cooperation between services: police, customs, justice, financial intelligence units. OIMAP's procedures are designed to fit with those of these administrations.

The role of the market

The lawful market is not the culprit, but it is the final outlet. It is what traffickers seek to reach in order to turn stolen property into money. Operators who apply due diligence close that door.

OIMAP therefore regards operators as partners: it provides them with the BIOP database, training and alerts, and expects in return that they report suspicious transactions and refuse doubtful provenances.

Shared responsibility

Trafficking stops at neither a border nor a profession. It feeds on indifference, absence of control, the temptation of a bargain. Responsibility is therefore shared among those who produce, those who transport, those who sell and those who buy.

OIMAP's awareness campaign makes this its central message: a work without clear provenance is a work that may have cost others dearly. Asking the question before buying is already acting.

The main forms of trafficking

Four forms
FormPrincipleResponse
Archaeological lootingClandestine digs of sitesMonitoring, local awareness-raising
Theft from a museum or collectionRemoval of worksSecuring, BIOP
SmugglingClandestine crossing of bordersCustoms controls, training
Fakes and launderingFalsification of provenance, moneyDiligence, certification

Landmarks

  1. UNESCO

    Convention against trafficking.

  2. UNIDROIT

    Restitution of stolen property.

  3. BIOP

    Creation of the database.

  4. INTERPOL

    Cooperation agreement.

  5. 23 operations

    Worldwide coordination.

A phenomenon that moves

A Boat That Has for Sails the Wings of a Huge Bird, Filippo Morghen (about 1769)
A Boat That Has for Sails the Wings of a Huge Bird, Filippo Morghen (about 1769)
Dr. James Stuart; Mary Campbell Stuart, Gilbert Stuart (c. 1815)
Dr. James Stuart; Mary Campbell Stuart, Gilbert Stuart (c. 1815)
The Fleet Off the Coast, Beachy Head, Samuel Atkins (c. 1790–1805)
The Fleet Off the Coast, Beachy Head, Samuel Atkins (c. 1790–1805)

Repression or prevention

Black-Figure Neck-Amphora of Panathenaic Shape (Storage Vessel) (525–500 BCE)

Repression

Investigations, seizures, prosecutions
  • Deters the networks
  • Costly and long
  • Downstream of the phenomenon

Necessary but insufficient.

The Storm, James McNeill Whistler (1861)

Prevention

Securing, awareness-raising, diligence
  • Reduces supply and demand
  • Less costly
  • Acts upstream

OIMAP's priority.

Acting against trafficking

  1. Inform

    Know the phenomenon.

  2. Prevent

    Secure sites and collections.

  3. Detect

    Consult the BIOP.

  4. Report

    Alert the unit.

  5. Cooperate

    Work with the services.

Everyone's role

A magistrate

The Judgment of Solomon and Esther before Ahasuerus (pair), Dirk Vellert (c. 1530)
« Trafficking in cultural property is a crime without a cry. Nobody sees the works disappear, but it is a people's history being erased. »
Judge Marta Lindqvist, magistrate

Vocabulary of trafficking

Looting
Clandestine dig of a site.
Receiving
Holding property that comes from an offence.
Smuggling
Clandestine crossing of a border.
Laundering
Concealment of the origin of illicit funds.

Frequently asked questions

What is the amount of trafficking?

It is hard to estimate; the Observatory puts forward an indicative range of 3 to 6 billion euros.

Who is concerned?

All countries, as sources, transit or destination.

How can I help?

By reporting, checking and training.

Where can I find the reports?

See Reports.

Useful documents

Contacts

Architectural Conference (c. 1622)
Architectural Conference (c. 1622)
Heritage Protection DepartmentParis — Headquarters+33 1 00 00 03 00protection@oimap.exampleMonday to Friday, 9 am – 5 pm

Read the overview

Ferry Slip, Edwin Kaufman (1927)

Overview of trafficking.

Overview
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