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

Protection

Recovering stolen works, fighting illicit trafficking and protecting heritage: the BIOP database, international cooperation, restitutions and guides for law enforcement.

Updated : October 28, 2026· 4 min read

Pages in this section

Seal with Two Qilin Playing (1849)BIOP databaseThe international database of protected works: 48,200 stolen, lost or suspect works, searchable by all and enriched by police forces and museums.› Twilight in the Wilderness, Frederic Edwin Church (1860)Search for a workThree ways to query the BIOP database: simple search, advanced search and image search, to check a work in a few minutes.› 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)Report a workDeclaring a theft, a loss or a suspect work: three procedures, a single aim, finding the work quickly.› Seal of Doge Michele Steno (reverse) (1400–1409)Active alertsThe 1,920 alerts currently in the BIOP database, sorted by country and type of property, and available as RSS feeds for operators and services.› Enjoying the Evening Cool Along the Sumida River, Kitagawa Utamaro (c. 1797–98)Fighting illicit traffickingUnderstanding and combating trafficking in cultural property: overview, networks, reports and international cooperation.› The Judgment of Solomon and Esther before Ahasuerus (pair), Dirk Vellert (c. 1530)Cooperation with INTERPOLThe cooperation agreement with INTERPOL: data exchange, joint operations, training and contacts for investigators.› Net Fishing at Night on the Sumida River, Kitagawa Utamaro (c. 1800)Cooperation with the WCOThe agreement with the World Customs Organization: border controls, training of customs officers and identification tools.› Beaded Hat or Headpiece (early 1900s(?))RestitutionsReturning works to their lawful owners: 847 restitutions since 2007, ongoing cases and procedure for requesting a restitution.› View of the Gulf of Pozzuoli from Solfatara, Philipp Hackert (1803)Cultural property in armed conflictProtecting heritage when the guns speak: risk zones, emergency protection, emergency fund and cooperation with field actors.› Seven Jeweled Mountain (late 1800s)Underwater heritageWrecks, sunken cities, submerged objects: protecting cultural heritage underwater and regulating excavations, looting and trade.› Black-Figure Kantharos (Drinking Cup): Lizards Flanking Tree (A); Ducks (B) (c. 500 BCE)Archaeological sitesAgainst looting: satellite monitoring, good management practices and action with the communities that live near sites.› Sailing Vessels: Armed Four-Master Putting Out to Sea, Pieter Bruegel (1561–65)Law enforcement guideRecognising cultural property, carrying out a seizure by the book and knowing whom to contact: OIMAP's practical guide for police officers, gendarmes and magistrates.› S. Giorgio Maggiore, Michele Marieschi (1741)Customs guideCustoms codes, identification sheets and training: everything customs officers need to spot cultural property at the border.› St. Anthony Reading, Albrecht Dürer (1519)Awareness-raisingChanging perceptions: campaigns, educational resources and Heritage Day so that everyone understands what trafficking destroys.› American Red Cross War Council Medal (obverse), Daniel Chester French (1920)Protection Fund6.8 million euros a year to protect heritage: projects financed, donors, transparency and how to support OIMAP.›

Protecting what cannot be replaced

Head of a Bearded Man (c. 125 CE)
Head of a Bearded Man (c. 125 CE)

A stolen or looted work is not just a lost asset: it is a memory that disappears. The Protection section brings together OIMAP's tools for finding works, stopping their circulation and returning them to those to whom they belong.

At the centre is the BIOP database, which lists 48,200 stolen, lost or suspect works. Around it, a chain of cooperation links museums, market operators, customs, police and States.

Each page describes a tool, how to use it and what it can achieve. The procedures are designed to be simple: a report takes a few minutes, an alert is published within twenty-four hours.

  • Protection
  • BIOP
  • Illicit trafficking

Protection in figures

48,200Works recorded in the BIOP database
847Works restituted since 2007
8,940Officials trained (customs, police, justice)
23Coordinated operations in 2024

Source: OIMAP Heritage Protection Department.

Breakdown

Thefts46%
Losses14%
Archaeological looting22%
Suspect works18%

Nature of BIOP database records.

A chain of protection

Heritage protection rests on a chain in which every link counts. The owner or museum reports the theft; the BIOP unit checks and publishes the alert; operators consult the database before buying; customs and police recognise the item at the border; States organise the restitution.

If a single link is missing, the work disappears into the circuit. That is why OIMAP works at once on tools (the database), people (training) and rules (the directives, cooperation).

Mortar, Wenzel Jamnitzer I (c. 1550–1560)
Mortar, Wenzel Jamnitzer I (c. 1550–1560)
Temple of Athene Nike. Venus Victrix—Wingless Victory, Dimitrios Constantin (c. 1850s–60s)
Temple of Athene Nike. Venus Victrix—Wingless Victory, Dimitrios Constantin (c. 1850s–60s)
Sketches in Belgium and Germany, Volume I: Hall of Justice of the Magistrates du Franc, Bruges, Louis Haghe (1840)
Sketches in Belgium and Germany, Volume I: Hall of Justice of the Magistrates du Franc, Bruges, Louis Haghe (1840)

Why an international database

A theft committed in one State is often resold in another, sometimes several years later. If each country keeps its own file, the same work can be lawfully sold to a buyer who could not have known. A common database removes this grey area.

The BIOP is fed by reports from owners, museums, national police forces and INTERPOL, and consulted by auction houses, galleries and platforms. It has already made it possible to block several hundred sales.

Four priorities

Prevention first: raising awareness among collectors, museums and communities living near sites. Detection next: quickly spotting a stolen work on the market. Cooperation: sharing information between services in different countries. Restitution finally: returning the work to its lawful owner through a fair procedure.

These four priorities structure the fifteen pages of the section and the actions of the Protection Fund, which finances field projects in the States that most need them.

Day-to-day organisation

The Heritage Protection Department brings together a BIOP unit of twelve analysts, a restitutions unit, a training unit and a partnerships unit. It works with the national focal points designated by each Member State.

An emergency line is open twenty-four hours a day for law enforcement. Operators and owners go through the Desk, which guarantees the follow-up and archiving of reports.

The section's tools

Five tools for five needs
ToolWhat it is forFor whom
BIOP databaseRecord and search worksEveryone
ReportingDeclare a theft, a loss or a doubtOwners, operators
Active alertsFollow new alertsOperators, customs
GuidesRecognise and seize propertyPolice, customs
RestitutionsReturn worksStates, owners

Landmarks

  1. Creation of OIMAP

    First working group on trafficking.

  2. Protection Fund

    First field projects.

  3. Agreement with INTERPOL

    Exchange of theft data.

  4. Agreement with the WCO

    Training of customs officers.

  5. 23 operations

    Record coordination.

A quick report changes everything

Karnak, Les Pylônes d'Horus, Henri Béchard (1860s)
Karnak, Les Pylônes d'Horus, Henri Béchard (1860s)
Red-Figure Squat Lekythos (Oil Vessel): Eros and Woman (c. 400–380 BCE)
Red-Figure Squat Lekythos (Oil Vessel): Eros and Woman (c. 400–380 BCE)
India. Benares. Aurangzeb's Mosque, after a photo by Dr. Kurt Boeck, Photoglob Co. (c. 1890–1910)
India. Benares. Aurangzeb's Mosque, after a photo by Dr. Kurt Boeck, Photoglob Co. (c. 1890–1910)

Prevent or react

Offering Table (305–30 BCE)

Prevention

Before the theft
  • Photographic inventory
  • OIMAP number and marking
  • Security of premises

Reduces the risk.

Pastoral Landscape with Ruins and a Ford, Gerhardt Janssen (1722)

Reaction

After the theft
  • Immediate report
  • BIOP alert
  • Cooperation with the police

Increases the chances of finding the work.

What to do in case of theft

  1. Establish

    Secure the premises and alert the police.

  2. Document

    Gather photos and descriptions.

  3. Report

    Complete the BIOP record.

  4. Follow up

    Answer requests for details.

  5. Recover

    Arrange the return if the work is found.

Protection reflexes

The Director of Protection

The Antechamber of the Palace of Justice, Paris, Charles Meryon (1855)
« A work found is a story that resumes. Every restitution reminds us why we work. »
Dr. Élodie Marchetti, Director of Heritage Protection

Vocabulary of protection

BIOP
International database of protected works.
Alert
Publication of a theft or a loss.
Restitution
Return of a work to its lawful owner.
Illicit trafficking
Circulation of stolen or looted works.

Frequently asked questions

Who can consult the BIOP database?

Anyone for simple search; professionals and law enforcement have enhanced access.

How long does it take to publish an alert?

Twenty-four hours for a complete report.

Is reporting free?

Yes.

Whom to contact in an emergency?

The law enforcement emergency line: see Contacts.

Useful documents

Contacts

Egypt and Nubia, Volume I: The Great Temple of Aboo-Simble, Nubia, Louis Haghe (1846)
Egypt and Nubia, Volume I: The Great Temple of Aboo-Simble, Nubia, Louis Haghe (1846)
Heritage Protection DepartmentParis — Headquarters+33 1 00 00 03 00protection@oimap.exampleMonday to Friday, 9 am – 5 pm

Consult the BIOP database

Temple at Naveshera, Kashmir, India, Samuel Bourne (1864)

The first step in any check.

BIOP database
Image credits (31)
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