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Decision database412 anonymised decisions: content, structure of an entry, themes, languages and conditions of access.›
Search in case lawSearch for a decision by keyword, theme, article of the Rules, chamber, year or language, and make use of the results.›
Case-law commentariesAnalyses by legal scholars of TAO decisions: themes, authors, method and use of commentaries in practice.›
Learning from past decisions

Arbitration being confidential, awards are not public. But with the parties' agreement, the TAO publishes anonymised versions of its decisions. They make up a valuable body of arbitral case law: they shed light on the interpretation of rules, customs and principles.
The database now holds 412 decisions, accessible online, classified by theme and indexed. Each comes with a summary and, for the most important, a commentary.
This section presents the decision database, the search engine and the commentaries.
Arbitral case law in figures
Source: Registry of the OIMAP Arbitral Tribunal.
Three pages



Why publish
Anonymised publication meets a need for predictability. Market players need to know how arbitrators interpret warranties, assess appraisals and deal with provenance questions. It also makes it possible to train practitioners and feed university research.
Confidentiality remains protected: the names of the parties, arbitrators, places and works are removed, along with any element allowing identification. Only awards whose publication the parties have consented to are published.
How decisions are selected
An editorial committee selects the awards of interest in principle: a new legal question, application of a rule, interpretation of a custom, position on an appraisal. It then asks the parties to consent to publication.
Decisions are summarised in a few lines, with keywords and references to articles of the Rules. The most important are translated into the three languages.
Value of arbitral case law
No award binds subsequent arbitrators: there is no binding precedent in arbitration. But consistency is sought, and arbitrators readily refer to earlier decisions. The parties may invoke published decisions in support of their argument.
This persuasive value makes the database a strategic tool for counsel, who assess their chances and the risks of a dispute more accurately.
Annual compendium
Each year the TAO publishes a compendium of landmark decisions, with an index and a thematic table. It is available online and in print, in three languages.
The compendium also brings together scholarly studies and publication statistics. It serves as support for training seminars organised with bar associations and universities.
Content of the database
| Theme | Decisions | Examples of questions |
|---|---|---|
| Authenticity | 140 | Value of an appraisal, warranty |
| Contracts | 124 | Price, latent defects, warranty |
| Provenance | 90 | Title, good faith |
| Restitution | 58 | Cultural property, time limit |
Milestones
- First decision
Published.
- 100 decisions
Threshold passed.
- Commentaries
Scholars invited.
- 412 decisions
Search engine.



No binding precedent
Arbitral and State case law

Arbitral
TAO decisions- Specialised
- Anonymised
- Consensual
Reflects customs.

State
Court judgments- Public
- Diverse
- Varies from country to country
Reflects national laws.
Using case law
- Define
The legal question.
- Search
Database.
- Read
Summaries.
- Analyse
Comparable facts.
- Cite
In submissions.
Good practice
A scholar

« At last the database gives us material for analysing how arbitrators reason. It is invaluable for teaching. »
Vocabulary of case law
- Case law
- All the decisions made.
- Anonymisation
- Removal of identifying elements.
- Summary
- Synopsis of a decision.
- Keywords
- Terms useful for searching.
Frequently asked questions
Is access free?
Yes.
May I cite the decisions?
Yes, with the reference.
Are all awards published?
No, only with agreement.
Where can I search?
See Search.
Useful documents
Contacts

Consult the database
Image credits (22)
- The Judgment of Solomon and Esther before Ahasuerus (pair), Dirk Vellert (c. 1530) — Cleveland Museum of Art, CC0 1.0
- The Calumny of Apelles, Giorgio Ghisi (1560) — Cleveland Museum of Art, CC0 1.0
- Dr. James Stuart; Mary Campbell Stuart, Gilbert Stuart (c. 1815) — 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
- Portrait of John VIII Palaoelogus, Emperor of Constantinople, 1424-1428 (reverse), Pisanello (c. 1438–1439) — 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
- Letter Box, Ogata Kōrin (1700s) — Cleveland Museum of Art, CC0 1.0
- The Victory Banquet: from Battle Scenes of the Quelling of Rebellions in the Western Regions, with Imperial Poems (c. 1765–74; poem dated 1760) — Cleveland Museum of Art, CC0 1.0
- Sweet Melancholy, Joseph-Marie Vien (1756) — Cleveland Museum of Art, CC0 1.0
- Coronation of the Virgin, Christoffel Jegher (1632–36) — Cleveland Museum of Art, CC0 1.0
- The Dance at the Court of Herod, Israhel van Meckenem (c. 1500) — Cleveland Museum of Art, CC0 1.0
- Carnet (1863–1865) — Cleveland Museum of Art, CC0 1.0
- Seal of Doge Michele Steno (reverse) (1400–1409) — Cleveland Museum of Art, CC0 1.0
- Fish or Seal Club (X’ús’) (late 1800s–early 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
- Teapot with Landscape and Imperial Poem, Chen Hanwen (1762–95) — Cleveland Museum of Art, CC0 1.0
- Carved Lacquer Scroll Box (1736–95) — Cleveland Museum of Art, CC0 1.0
- Nowshera, Kashmir (number 1000), Samuel Bourne (1864) — Cleveland Museum of Art, CC0 1.0
- Seal Color Box (1662–1722) — Cleveland Museum of Art, CC0 1.0
- Seal with Two Qilin Playing (1849) — Cleveland Museum of Art, CC0 1.0
- Plaque (1500s–1600s) — Cleveland Museum of Art, CC0 1.0
- Seal Color Box (1662–1722) — Cleveland Museum of Art, CC0 1.0
Cleveland Museum of Art · CC0 1.0


Decision database412 anonymised decisions: content, structure of an entry, themes, languages and conditions of access.›
Search in case lawSearch for a decision by keyword, theme, article of the Rules, chamber, year or language, and make use of the results.›
Case-law commentariesAnalyses by legal scholars of TAO decisions: themes, authors, method and use of commentaries in practice.›