Pages in this section
BIOP databaseThe international database of protected works: 48,200 stolen, lost or suspect works, searchable by all and enriched by police forces and museums.›
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.›
Report a workDeclaring a theft, a loss or a suspect work: three procedures, a single aim, finding the work quickly.›
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.›
Fighting illicit traffickingUnderstanding and combating trafficking in cultural property: overview, networks, reports and international cooperation.›
Cooperation with INTERPOLThe cooperation agreement with INTERPOL: data exchange, joint operations, training and contacts for investigators.›
Cooperation with the WCOThe agreement with the World Customs Organization: border controls, training of customs officers and identification tools.›
RestitutionsReturning works to their lawful owners: 847 restitutions since 2007, ongoing cases and procedure for requesting a restitution.›
Cultural property in armed conflictProtecting heritage when the guns speak: risk zones, emergency protection, emergency fund and cooperation with field actors.›
Underwater heritageWrecks, sunken cities, submerged objects: protecting cultural heritage underwater and regulating excavations, looting and trade.›
Archaeological sitesAgainst looting: satellite monitoring, good management practices and action with the communities that live near sites.›
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.›
Customs guideCustoms codes, identification sheets and training: everything customs officers need to spot cultural property at the border.›
Awareness-raisingChanging perceptions: campaigns, educational resources and Heritage Day so that everyone understands what trafficking destroys.›
Protection Fund6.8 million euros a year to protect heritage: projects financed, donors, transparency and how to support OIMAP.›
Protecting what cannot be replaced

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 in figures
Source: OIMAP Heritage Protection Department.
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).



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
| Tool | What it is for | For whom |
|---|---|---|
| BIOP database | Record and search works | Everyone |
| Reporting | Declare a theft, a loss or a doubt | Owners, operators |
| Active alerts | Follow new alerts | Operators, customs |
| Guides | Recognise and seize property | Police, customs |
| Restitutions | Return works | States, owners |
Landmarks
- Creation of OIMAP
First working group on trafficking.
- Protection Fund
First field projects.
- Agreement with INTERPOL
Exchange of theft data.
- Agreement with the WCO
Training of customs officers.
- 23 operations
Record coordination.
A quick report changes everything



Prevent or react

Prevention
Before the theft- Photographic inventory
- OIMAP number and marking
- Security of premises
Reduces the risk.

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
- Establish
Secure the premises and alert the police.
- Document
Gather photos and descriptions.
- Report
Complete the BIOP record.
- Follow up
Answer requests for details.
- Recover
Arrange the return if the work is found.
Protection reflexes
The Director of Protection

« A work found is a story that resumes. Every restitution reminds us why we work. »
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

Consult the BIOP database
Image credits (31)
- Châteauvieux-sur-Suran, Antoine-Claude Ponthus-Cinier (1848) — Cleveland Museum of Art, CC0 1.0
- Seal with Two Qilin Playing (1849) — Cleveland Museum of Art, CC0 1.0
- Twilight in the Wilderness, Frederic Edwin Church (1860) — 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
- Seal of Doge Michele Steno (reverse) (1400–1409) — Cleveland Museum of Art, CC0 1.0
- Enjoying the Evening Cool Along the Sumida River, Kitagawa Utamaro (c. 1797–98) — Cleveland Museum of Art, CC0 1.0
- The Judgment of Solomon and Esther before Ahasuerus (pair), Dirk Vellert (c. 1530) — Cleveland Museum of Art, CC0 1.0
- Net Fishing at Night on the Sumida River, Kitagawa Utamaro (c. 1800) — Cleveland Museum of Art, CC0 1.0
- Beaded Hat or Headpiece (early 1900s(?)) — Cleveland Museum of Art, CC0 1.0
- View of the Gulf of Pozzuoli from Solfatara, Philipp Hackert (1803) — Cleveland Museum of Art, CC0 1.0
- Seven Jeweled Mountain (late 1800s) — Cleveland Museum of Art, CC0 1.0
- Black-Figure Kantharos (Drinking Cup): Lizards Flanking Tree (A); Ducks (B) (c. 500 BCE) — Cleveland Museum of Art, CC0 1.0
- Sailing Vessels: Armed Four-Master Putting Out to Sea, Pieter Bruegel (1561–65) — Cleveland Museum of Art, CC0 1.0
- S. Giorgio Maggiore, Michele Marieschi (1741) — Cleveland Museum of Art, CC0 1.0
- St. Anthony Reading, Albrecht Dürer (1519) — Cleveland Museum of Art, CC0 1.0
- American Red Cross War Council Medal (obverse), Daniel Chester French (1920) — Cleveland Museum of Art, CC0 1.0
- Head of a Bearded Man (c. 125 CE) — Cleveland Museum of Art, CC0 1.0
- Mortar, Wenzel Jamnitzer I (c. 1550–1560) — Cleveland Museum of Art, CC0 1.0
- Temple of Athene Nike. Venus Victrix—Wingless Victory, Dimitrios Constantin (c. 1850s–60s) — Cleveland Museum of Art, CC0 1.0
- Sketches in Belgium and Germany, Volume I: Hall of Justice of the Magistrates du Franc, Bruges, Louis Haghe (1840) — Cleveland Museum of Art, CC0 1.0
- Karnak, Les Pylônes d'Horus, Henri Béchard (1860s) — Cleveland Museum of Art, CC0 1.0
- Red-Figure Squat Lekythos (Oil Vessel): Eros and Woman (c. 400–380 BCE) — Cleveland Museum of Art, CC0 1.0
- India. Benares. Aurangzeb's Mosque, after a photo by Dr. Kurt Boeck, Photoglob Co. (c. 1890–1910) — Cleveland Museum of Art, CC0 1.0
- Offering Table (305–30 BCE) — Cleveland Museum of Art, CC0 1.0
- Pastoral Landscape with Ruins and a Ford, Gerhardt Janssen (1722) — Cleveland Museum of Art, CC0 1.0
- The Antechamber of the Palace of Justice, Paris, Charles Meryon (1855) — Cleveland Museum of Art, CC0 1.0
- Egypt and Nubia, Volume I: The Great Temple of Aboo-Simble, Nubia, Louis Haghe (1846) — Cleveland Museum of Art, CC0 1.0
- Mirror with Concentric Circles and Linked Arcs (late 300s BCE–50 CE) — Cleveland Museum of Art, CC0 1.0
- Black-Figure Neck-Amphora of Panathenaic Shape (Storage Vessel) (525–500 BCE) — 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
- Temple at Naveshera, Kashmir, India, Samuel Bourne (1864) — Cleveland Museum of Art, CC0 1.0
Cleveland Museum of Art · CC0 1.0
BIOP databaseThe international database of protected works: 48,200 stolen, lost or suspect works, searchable by all and enriched by police forces and museums.›
RestitutionsReturning works to their lawful owners: 847 restitutions since 2007, ongoing cases and procedure for requesting a restitution.›
UNESCO Convention 1970The 1970 Convention on the means of prohibiting and preventing the illicit import, export and transfer of ownership of cultural property.›