Rules of Evidence in International Arbitration
Page 23
CHAPTER 3
Document production in international arbitration
Introduction
3.01 As a general rule, documentary evidence is often afforded the highest level of credibility within international arbitration.1 The preference for the written word over oral testimony is not something unique to the modern era of international arbitration, but is derived from the practices and procedures of some of the earliest arbitral tribunals and commissions. International tribunals from the nineteenth and early twentieth centuries, including “mixed commissions”, often incorporated into their rules a stated preference for evidence to be submitted primarily in written form and, in one particular instance, actually prohibited the introduction of oral testimony save for exceptional circumstances.2 One of the foremost experts on early arbitral procedure summarised this practice by stating, “probably the most outstanding characteristic of international judicial procedure is the extent to which reliance is placed upon its written word, both in the manner of pleadings, and of evidence, but especially the latter.”3 3.02 This stands in marked contrast to the traditions followed in common law jurisdictions, which often regard oral witness testimony as indispensable. Documentary evidence in those jurisdictions is often introduced only after a foundation establishing its reliability has been laid using witness testimony. This is not the case in countries that take their legal heritage from the civil law tradition. There, witness testimony is clearly supplemental to documentary evidence, which is given greater weight. 3.03 International arbitration has adopted the civil law’s preference for documents, but this is not to say that the common law has not influenced the manner in whichPage 24
General considerations regarding production of documentary evidence
Article 3.1 2010 IBA Rules: | Within the time ordered by the Arbitral Tribunal, each Party shall submit to the Arbitral Tribunal and to the other Parties all Documents available to it on which it relies, including public Documents and those in the public domain, except for any Documents that have already been submitted by another Party. |
Related Rules | |
Article 20(4) UNCITRAL Rules: | The statement of claim should, as far as possible, be accompanied by all documents and other evidence relied upon by the claimant, or contain references to them. |
Article 21(2) UNCITRAL Rules: | The statement of defence shall reply to the particulars (b) to (e) of the statement of claim (article 20, paragraph 2). The statement of defence should, as far as possible, be accompanied by all documents and other evidence relied upon by the respondent, or contain references to them. |
Page 25
General discussion
3.05 The customary approach in international arbitration is that a party is expected to produce the evidence on which it intends to rely.5 This is naturally the case since parties must substantiate their allegations with evidence in order to meet their respective burdens of proof.6 Only if the tribunal has authorised it ahead of time, or the parties have agreed as much, should a party assume that representations of counsel, or summaries of the relevant documents, will be adequate in lieu of producing the documentary evidence on which it relies to support its arguments.7 Article 3.1 restates this important principle of internationalPage 26
Page 27
The arbitrators have a duty to take into account the fundamental right of each party to present its case properly, but they also have a duty to ensure that the arbitration progresses at a reasonable pace and to avoid unwarranted or deliberate delays. If a party which has had ample opportunity to prepare its case or to submit requests to the arbitral tribunal at an earlier stage of the proceedings, applies to a tribunal, belatedly and without giving legitimate reasons for its tardiness, with requests which are liable to cause substantial delays, it may well be the duty of the arbitrators to continue the arbitration without accepting the request of the tardy party.12