Losing is not stealing

A work can disappear without any offence being committed: it was mislaid during a house move, forgotten in a storage unit, entrusted to a provider who has vanished or lent to a person who never returned it.
In these cases, the procedure is more flexible than for theft: the declaration of loss is made without a complaint, with an alert that is lower priority but just as visible. About 14% of reports concern losses.
This page details the common situations, the information to supply and the further searches.
Reporting a loss in figures
Source: OIMAP Heritage Protection Department.
Common situations
House moves are the first cause: boxes mislaid, crates sent to the wrong address, works forgotten. Loans not returned come next: a work entrusted to a friend, an exhibition or a restorer, and never returned. Estates pose a particular problem, because a poorly inventoried inheritance can hide a missing work.
In each case, the essential thing is to date the last known presence of the work and to gather the traces: invoices, photos, letters, testimonies.



Making the declaration
The declaration is made on the Desk by choosing "Loss". The form asks for the description of the work, the date and place of the last known presence, the circumstances, the steps already taken and the person to contact.
It is advisable to attach a sworn statement and, if the loss occurred at a provider, a copy of the contract and exchanges. OIMAP issues a receipt for the declaration, useful for insurance and for administrative procedures.
Finding a lost work
The BIOP unit publishes the alert, but the initiative stays with the owner. Contact providers, neighbours, former tenants; question insurers and carriers; consult lost-property offices and local sales. Many lost works are found within a few months.
If the work is found by a third party, the BIOP record makes it possible to reach you. The third party can contact you through the unit, which guarantees the protection of your contact details.
Avoiding losses
Losses can be prevented. Entering each work in an inventory, photographing it, keeping a register of loans and movements, mentioning works in house-move or storage contracts are simple actions that avoid most disappearances.
For loans, a written contract stating the duration, the condition of the work and the conditions of return is the best protection. OIMAP offers a loan contract template in three languages.
Loss, theft or loan not returned
| Situation | Characterisation | First reflex |
|---|---|---|
| Mislaid work | Loss | Declaration on the Desk |
| Work disappeared at a provider | Loss or theft | Formal notice to the provider |
| Loan never returned | Loss or breach of trust | Formal notice then advice |
| Burglary | Theft | Complaint |
Landmarks
- Finding of the loss
Last presence.
- Searches
Contact the providers.
- Declaration
OIMAP receipt.
- Alert
Publication.
- Follow-up
Update of the record.
A loan not returned is settled in writing first



Discreet declaration or public alert

Discreet
Record reserved for law enforcement- Avoids alerting a good-faith borrower
- Remains available to investigators
- Possible choice for loans
Measured option.

Public
Alert visible to all- Maximises the chances of finding
- Informs all operators
- Recommended in case of serious doubt
Most effective option.
Declaring a loss
- Date
Fix the last known presence.
- Search
Contact the persons concerned.
- Declare
Complete the form.
- Obtain
Receive the receipt.
- Follow up
Update the record.
Elements to gather
An heiress

« Clearing my mother's house, we found that a painting was missing. The declaration allowed us to find it with a distant relative. »
Vocabulary of loss
- Formal notice
- Letter demanding performance.
- Last presence
- Last certain date of possession.
- Receipt
- Proof of declaration.
- Estate
- Transmission of the estate of a deceased person.
Frequently asked questions
Must I file a complaint?
Not necessarily for a loss, but keep the declaration.
Does my insurance cover the loss?
Depending on the contract.
Is the alert public?
Yes, unless discretion is chosen.
What to do if the work is found?
Inform OIMAP immediately.
Useful documents
Contacts

See how to report a theft
Image credits (16)
- Seal Color Box (1662–1722) — Cleveland Museum of Art, CC0 1.0
- Nowshera, Kashmir (number 1000), Samuel Bourne (1864) — Cleveland Museum of Art, CC0 1.0
- Carnet (1863–1865) — Cleveland Museum of Art, CC0 1.0
- Gathering among the Members of Office Censor-General (1700s) — Cleveland Museum of Art, CC0 1.0
- Plaque (1500s–1600s) — Cleveland Museum of Art, CC0 1.0
- La Belle Jardinère: le magasin de la rue de la Cité pendant sa demolition, Paris, Charles Marville (1864–66) — 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
- Farmhouse on the Slope of a Hill, Fra Bartolommeo (c. 1508) — Cleveland Museum of Art, CC0 1.0
- Mercury (Budha), from a Mandi Astrology Series, Sanju (c. 1810) — Cleveland Museum of Art, CC0 1.0
- Boy with Cigar (c. 1855) — Cleveland Museum of Art, CC0 1.0
- Seal Color Box (1662–1722) — Cleveland Museum of Art, CC0 1.0
- The Doge's Palace, Venice, Richard Parkes Bonington (1826) — Cleveland Museum of Art, CC0 1.0
- The Triumph of Mordecai, Lucas van Leyden (1515) — Cleveland Museum of Art, CC0 1.0
- Bidri Hookah Bowl with Roses (c. 1650s) — Cleveland Museum of Art, CC0 1.0
- Seal with Two Qilin Playing (1849) — Cleveland Museum of Art, CC0 1.0
- Portrait of a Naval Officer, Lai Fong (1870s) — Cleveland Museum of Art, CC0 1.0
Cleveland Museum of Art · CC0 1.0
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