How the BIOP was born

At the end of the 2000s, OIMAP's pioneer States found that thefts of works were being recorded in incompatible national files. A buyer could not know whether the work offered to them had been stolen abroad.
The BIOP database was created in 2009 to provide a single point of consultation. It rests on a common format for describing works, which States, museums and police forces have gradually adopted.
This page tells its story, explains its governance and describes how information is gathered, checked and protected.
Presentation of the BIOP database in figures
Source: OIMAP Heritage Protection Department.
Governance of the database
The database is under the responsibility of the Heritage Protection Department, which directs a unit of twelve analysts. A supervisory committee of nine members — magistrates, lawyers, representatives of museums and civil society — checks its operation each year and issues a public report.
The rules of publication, correction and withdrawal are set by a regulation approved by the Assembly. It guarantees the rights of owners, of good-faith buyers and of investigators.



How a record is created
The report arrives through the Desk, through a national focal point or by automated exchange with INTERPOL. An analyst checks the elements, contacts the reporter if need be and looks for a possible duplicate. They complete the description with the available information.
The record is published within twenty-four hours when the file is complete. If elements are missing, it is published in a provisional state flagged as such, and enriched afterwards. Every change is timestamped in a log.
Protecting data and people
The database contains sensitive information: museum addresses, circumstances of thefts, owners' identities. Only the data useful for recognising the work are public. The rest is reserved for higher levels of access and protected by encryption.
Consultations are logged. An operator may request the history of its searches, and an owner may know who has consulted their record in the course of an investigation, within the limits of the law.
The database's projects
Three projects are under way: extending image recognition to three-dimensional objects, interconnection with the databases of twenty more States and the opening of a programmable interface for approved platforms.
They come with reflection on the use of artificial intelligence to help analysts spot duplicates and suspect works, with systematic human review of decisions.
The life of a record
| Step | Time limit | Responsible |
|---|---|---|
| Receipt of the report | Immediate | Desk |
| Verification | Within 24 h | BIOP analyst |
| Publication | Within 24 h | BIOP unit |
| Update | Depending on the investigation | Reporter and analyst |
| Striking off | As soon as the work is found | BIOP unit |
Landmarks
- Creation of the database
3,000 records.
- Common format
Adopted by twenty States.
- INTERPOL synchronisation
Bilateral exchange.
- Image search
Launch.
- External review
First independent audit.
A duplicate is a risk



Complete record or provisional record

Complete
All elements gathered- Photographs, dimensions, circumstances
- Published within 24 h
- Reliable search
Ideal case.

Provisional
Missing elements- Partial description
- Supplemented afterwards
- Risk of false negatives
Useful for alerting quickly.
Enriching a record
- Reread
Check the accuracy of the record.
- Supplement
Add photos and details.
- Attach
Send police reports.
- Update
Report developments.
- Close
Inform if the work is returned.
Elements of a good description
A BIOP unit analyst

« A good record comes down to one detail: a mark on the back, an old repair. It is that detail that makes it possible to recognise the work. »
Vocabulary of the database
- Log
- History of changes to a record.
- Provisional record
- Record published before it is complete.
- Supervisory committee
- Independent oversight body.
- Interoperability
- Ability of two systems to exchange.
Frequently asked questions
Who controls the database?
The supervisory committee, which publishes a report each year.
How many analysts?
Twelve.
How do I challenge a record?
By a reasoned request for correction.
Is the database available in three languages?
Yes, the records are translated.
Useful documents
Contacts

See professional access
Image credits (16)
- Carved Lacquer Scroll Box (1736–95) — Cleveland Museum of Art, CC0 1.0
- Daffodil Table Lamp, Tiffany Studios (c. 1910–13) — Cleveland Museum of Art, CC0 1.0
- Seal with Two Qilin Playing (1849) — Cleveland Museum of Art, CC0 1.0
- Panel (c. 1780–1840) — Cleveland Museum of Art, CC0 1.0
- Fish or Seal Club (X’ús’) (late 1800s–early 1900s) — Cleveland Museum of Art, CC0 1.0
- Jar with Design in Underglaze Iron (1800s–1900s) — Cleveland Museum of Art, CC0 1.0
- Document Box (Ryōshibako) with Chrysanthemum and Plum (lid) (late 1800s-early 1900s) — Cleveland Museum of Art, CC0 1.0
- The Four Seasons, Kano Tan’yū (1668) — Cleveland Museum of Art, CC0 1.0
- Teapot with Landscape and Imperial Poem, Chen Hanwen (1762–95) — Cleveland Museum of Art, CC0 1.0
- Mirror with Concentric Circles, an Immortal, and Auspicious Animals (100 BCE–100 CE) — Cleveland Museum of Art, CC0 1.0
- Seal of Doge Michele Steno (reverse) (1400–1409) — Cleveland Museum of Art, CC0 1.0
- The Grotto of Posillipo, Hubert Robert (c. 1769) — 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
- 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
- Mercury (Budha), from a Mandi Astrology Series, Sanju (c. 1810) — Cleveland Museum of Art, CC0 1.0
- Portrait of a Man, Gustave Caillebotte (1880) — 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.›
Professional access to the BIOPEnhanced access reserved for approved operators: conditions, features, personalised alerts, automated interface and obligations.›
Law enforcement access to the BIOPSecure access for police, customs and magistrates: authorisation, sensitive data, emergency line and cooperation with investigators.›