Six steps for a solid due diligence

This guide describes the method OIMAP recommends for carrying out due diligence. It is designed to be applied equally by a large auction house, an independent dealer or a collector reselling a work.
The method has six steps: qualify the risk, verify identity, establish provenance, check lawfulness, examine payment and decide. Each leaves a trace in a single file.
The following pages offer checklists and templates to put it into practice.
Practical guide to due diligence in figures
Source: OIMAP Legal Affairs Department.
The first three steps
First step: qualify the risk. The operator assesses the amount, the nature of the work, the geographical origin, the profile of the parties and the method of payment. This diagnosis determines the level of diligence (basic, enhanced or exceptional).
Second step: verify identity. This means making sure of the identity of the seller and the buyer, their capacity to act and, where applicable, the identity of the beneficial owner. Third step: establish provenance, that is, reconstruct as far as possible the chain of owners since the work was created.



The last three steps
Fourth step: check lawfulness. The operator consults the BIOP database, inventories of stolen property, lists of protected property and the legislation of the State of origin. Fifth step: examine payment: origin of funds, consistency with the client's profile, means used.
Sixth step: decide and archive. The operator concludes, refuses or asks for further information, then keeps the complete file. A decision to refuse must be reasoned, and may trigger a report.
Adapting the method to your size
A large auction house has a compliance department, computerised tools and networks of experts. An independent dealer does the same on a smaller scale, with a binder or a spreadsheet and a network of colleagues. What matters is that each step is carried out, dated and kept.
OIMAP offers simplified versions for small operators: a single two-page sheet covering the six basic steps is enough for low-value transactions.
Steps, tools and evidence
| Step | Tools | Evidence to keep |
|---|---|---|
| 1. Risk | Risk grid | Qualification sheet |
| 2. Identity | Identity documents, registers | Copies and extracts |
| 3. Provenance | Certificates, archives, catalogues | Provenance file |
| 4. Lawfulness | BIOP database, inventories | Dated capture of consultations |
| 5. Payment | Statements, contracts | Proof of payment |
| 6. Decision | Summary note | Signed decision |
Landmarks
- Qualification
Level of risk.
- Identity
Collection of documents.
- Provenance
Research and archives.
- Lawfulness
Consultations.
- Payment and decision
Final checks.
Warning signs
Documentary or field diligence

Documentary
Analysis of documents- Quick
- Inexpensive
- Sufficient for routine cases
Basic diligence.

Field
Visits, interviews, expert appraisals- Slower
- More expensive
- Necessary for sensitive cases
Enhanced diligence.



What to do in case of doubt
- Suspend
Do not conclude.
- Supplement
Ask for documents.
- Consult
Take the opinion of an expert or the Department.
- Report
Inform OIMAP if necessary.
- Decide
Conclude or refuse, in writing.
Good practices
An auction house manager

« The day we formalised our due diligence, we discovered that we were already doing 80% of it: what was missing was the trace. »
Vocabulary of diligence
- Beneficial owner
- Person who actually controls a company.
- Qualification sheet
- Document assessing the level of risk.
- Report
- Information sent to the competent authority.
- Due diligence file
- All the evidence of a check.
Frequently asked questions
Who must carry out the due diligence?
The operator, under the responsibility of its manager.
Can it be outsourced?
Yes, but responsibility remains.
How long must records be kept?
Ten years.
Where can I find templates?
In the form templates.
Useful documents
Contacts

See the checklists
Image credits (16)
- Seal Color Box (1662–1722) — Cleveland Museum of Art, CC0 1.0
- Taj Mahal, Back View of the Rest-House, with Figure, Dr. John Murray (c. 1858–1862) — Cleveland Museum of Art, CC0 1.0
- The Triumph of Mordecai, Lucas van Leyden (1515) — Cleveland Museum of Art, CC0 1.0
- Painting Enthusiasts at Auction House Bouillon, Honoré Daumier (1862, printed 1920) — 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
- Compass and Sun Dial (1700–1750) — Cleveland Museum of Art, CC0 1.0
- Mercury (Budha), from a Mandi Astrology Series, Sanju (c. 1810) — Cleveland Museum of Art, CC0 1.0
- Creamer, Louis Rorimer (c. 1910) — Cleveland Museum of Art, CC0 1.0
- Carnet (1863–1865) — Cleveland Museum of Art, CC0 1.0
- The Judgment of Midas, Nicolaes Clock (1589) — Cleveland Museum of Art, CC0 1.0
- Plaque (1500s–1600s) — Cleveland Museum of Art, CC0 1.0
- The Grotto of Posillipo, Hubert Robert (c. 1769) — Cleveland Museum of Art, CC0 1.0
- Annunciation to the Shepherds: Leaf from a Book of Hours (1 of 6 Excised Leaves), Henri d'Orquevaulx (c. 1420–30) — Cleveland Museum of Art, CC0 1.0
- Seal of Doge Michele Steno (reverse) (1400–1409) — Cleveland Museum of Art, CC0 1.0
- Seal with Two Qilin Playing (1849) — Cleveland Museum of Art, CC0 1.0
- Plate: Diana and Acteon, Maestro Giorgio Andreoli (1522) — Cleveland Museum of Art, CC0 1.0
Cleveland Museum of Art · CC0 1.0
Due diligenceThe checks every operator must carry out before buying, selling or presenting a work: guide, checklists and templates.›
Due diligence checklistsThe twelve due diligence checkpoints, to be ticked before each transaction.›
BIOP databaseThe international database of protected works: 48,200 stolen, lost or suspect works, searchable by all and enriched by police forces and museums.›