This post presents the written script that I prepared for my participation as a faculty member in the “Gold Standard Training Course” of the Toronto Commercial Arbitration Society (“TCAS”), in its Ethics class held on February 4, 2026. I have had the privilege of participating annually as a guest faculty member in the TCAS Gold Standard course for approximately 15 years. The course was designed by the distinguished Canadian arbitrator William G. Horton, as a comprehensive training course for experienced lawyers seeking to focus more intensively on arbitration practice. It is now carried on by others under the leadership of TCAS President Douglas Harrison.
I will focus my presentation to you today on the question of what power, if any, does the arbitrator have to establish and enforce, first, rules about the conduct of party representatives — including lawyers — and second, rules about the eligibility of party representatives — including lawyers — to even participate in the arbitration.
You may wonder why this is even a controversial question, and yet it is. What are the reasons for the controversy? First reason: the fact that the rules of arbitration that Parties adopt, whether in domestic or international arbitration, and in international arbitration whether it is commercial or under an investment treaty, often do not address these question directly. But nearly all rules you may encounter do address these issues at least elliptically.
Let’s just ponder the text of the UNCITRAL Rules, as a good reference point for this session. They state in Article 5: “Each party may be represented or assisted by persons chosen by it.” For comparison, consider the 2025 edition of the Arbitration Rules of the ADR Institute of Canada (ADRIC): they do not declare in similar fashion the existence of this right of representation, but instead assume the existence of this right, and proceed to regulate it: “A party may not change its representation to a representative who would give rise to (i) a disqualifying conflict of interest on the part of the Tribunal or any member of the Tribunal, or (ii) any other concern which the Tribunal finds would affect the fairness of the proceedings.” (Rule 4.11). Subdivision (i) of this Rule captures expressly, as many provider rules and soft law rules such as the IBA Rules on Party Representation have done for several years, the principle derived from the long-famous Hrvatska case. But they go further, with the broad “catch-all” of subdivision (ii). And that second sub-division is plainly broad enough to cover the mid-stream engagement of a law firm that is known to have had a prior attorney-client relationship with the adverse party. Certainly in the eyes of that adverse party this may well be a concern that could affect the fairness of the proceedings.
More about the powers of Tribunals to disqualify counsel for conflicts of interest a bit later in this presentation.
On the theme of explicit versus elliptical treatment of the arbitrator’s power to regulate counsel conduct, let’s make a further comparison of the UNCITRAL and ADRIC Rules’ Texts. The UNCITRAL Rules state in Article 17: “Subject to these Rules, the arbitral tribunal may conduct the arbitration in such manner as it considers appropriate, provided that the parties are treated with equality and … each party is given a reasonable opportunity of presenting its case.” It goes on to say the tribunal “shall conduct the proceedings so as to … provide a fair and efficient process for resolving the Parties’ dispute.” Query does this broad declaration of arbitral power necessarily embrace the specific powers we are discussing today at least when it is necessary to exercise them? And Query whether this all-encompassing vision explains why the UNCITRAL Rules, in regard to such powers, have not been modified in 50 years?
ADRIC’s 2025 Rules state that is an objective of arbitration to provide a “just, speedy and cost-effective” mode of dispute resolution, and that this is a goal toward which “the Parties and their counsel must cooperate with each other and with the Tribunal in order to achieve” that objective. (Rules 1.1 and 4.8.2-3). Certainly that language resonates of a considerable exposure to the UNCITRAL Rules among the ADRIC Rules drafters! But staying with our theme of what’s explicit versus what’s elliptical, consider this passage in the ADRIC Rules: “In making an award for costs, the Tribunal may … take into account any matters it considers to be relevant, including … the parties’ respective degrees of compliance with rules 1.1 and 4.8.3.” (Rule 5.3.2).
So let’s imagine for a moment that we are in the middle of a very complicated case under the ADRIC Rules. The merits hearing is still months off into the future, but there has just been an evidentiary hearing on certain collateral issues involving allegations of misconduct by certain employees of the Respondent. The Tribunal’s Chair, Arbitrator Bjorkquist*, and the Party appointed arbitrators, Goldstein and Munro*, all agree that Respondent and its counsel have made serial violations of the duties, quoted above, to cooperate with their adversaries toward a just, speedy and cost-effective procedure. They differ however on what the ADRIC Rules permit the Tribunal to do about this, at this interim stage of the case. The Claimant seeks
*(Note, dear Readers, Sonia Bjorkquist and Lisa Munro are distinguished arbitration lawyers, and are senior partners and leaders of the international arbitration practices at prominent Canadian law firms based in Toronto. Sonia is a former President of the Advocates Society, co-author of Sources of Ethical Obligations in International Arbitration (LexisNexis 2021), and a leader of the Ethics faculty for the TCAS Gold Standard Course since 2016. Lisa, who acts primarily as an arbitrator at this stage of her career, is a co-director of the TCAS Gold Standard Course and served on the drafting committee for the ADRIC Rules.)
Arbitrator Munro sits quietly as her colleagues engage in a vigorous but courteous debate. Arbitrator Bjorkquist says: “These Rules provide no relief for such violations save for the imposition of costs in the Final Award. In fact they do not provide for any form of a sanction against a party, much less its counsel. Granted, the Rules have some broad language allowing the Tribunal to take into account concerns about the integrity of NEW counsel if a party proposes a CHANGE in representation, but this is not a CHANGE situation here. I am very worried about exceeding our powers and making an Award subject to annulment.”
Arbitrator Goldstein shares another perspective: “We should hesitate, I think, to conclude that our powers to address misconduct are confined to those powers stated explicitly. It seems to me that some powers are implicit in the role of an arbitrator in advancing the objectives of the arbitral process. Here the ADRIC Rule 4.8.3 has made an explicit mandate to the Parties and their counsel that they must cooperate with one another and with the Tribunal toward the achievement of a just, speedy and cost-effective procedure. How can the efficacy of that Rule be achieved if we can only address infractions when we reach the end of the case by considering misconduct as a factor that bears on costs? By the end of the case, the integrity of the arbitral process may be irreparably harmed. I see in the Rules no prohibition or restriction on the taking of measures against a party or its counsel other than as a reckoning in the final awarding of costs. On balance I think the absence of an explicit provision for such measures is not to be interpreted as a prohibition, but as a reason to be judicious and cautious in considering whether the measures proposed are justified in the circumstances.”
So let’s take a specific set of facts, and see which of these perspectives you prefer. It’s a contest over corporate control. The minority shareholder has the contractual right to have the Company sold so that it can liquidate its investment. The majority shareholder refuses. The majority shareholder begins a collateral dispute, saying the CEO of the Company is corrupt and has to be replaced before there can be any sale. The Tribunal agrees to have a special hearing about that issue, because it is raised as a defense to the minority shareholders’ request that the Tribunal award sanctions, and the Tribunal calls for certain evidence to be provided. The majority shareholder (1) refuses to produce the documents requested by the Tribunal, (2) makes representations of material facts through its counsel that turn out not to be facts, (3) through certain of its counsel has presented facts in foreign criminal courts that have caused the CEO to be prosecuted, and these are “facts” that Tribunal in prior proceedings has already found to be non-existent, and (4) through certain of its counsel procured an Opinion Letter from a prestigious US law firm, saying that this CEO should be fired as a compliance risk, based on presenting the false facts as being truthful, and used that Opinion Letter as evidence in the arbitration. (A note re confidentiality: The Partial Final Award reflecting these facts became public at the initiative of one of the Parties to the arbitration in March 2025, and was published, inter alia, by Jus Mundi and Global Arbitration Review).
What result? Would you let it all pass, and take it into account only in the Final Award in regard to allocating costs?
Here is what a New York-seated Tribunal did in the case from which this model is derived : It decided in a Partial Final Award that, as a sanction for misconduct attributable to the Respondent, through counsel acting on its behalf, the offending counsel could only continue as co-counsel if the Respondent appointed a new lead counsel that would take responsibility that every further submission by the Respondent would be in compliance with the US judicial procedural rules concerning the lawyer’s duty of candor. (Those judicial procedural rules were thus adopted going forward as conduct rules applicable to counsel in the arbitration).
If this case had been under the UNCITRAL Rules, or under the 2025 ADRIC Rules – to take only the rules we have discussion in this session, was that an abuse of power, in excess of the powers conferred by the Rules? (The actual case was under the Commercial Rules of the American Arbitration Association). Let’s have a show of hands. The federal courts in New York said NO, said that the arbitrators acted within their authority. The US Second Circuit Court of Appeals wrote:
“[Respondent] argues that the arbitral panel exceeded the scope of its authority in imposing sanctions. We disagree. The [applicable] Rule provides that an ‘arbitrator may grant any remedy or relief that the arbitrator deems just and equitable and within the scope of the agreement of the parties.’ That broad authority includes the power to impose sanctions.”
And here the Second Circuit panel cited one of its prior cases from 2009 where the Second Circuit held that sanctions “are appropriately viewed as a remedy within the arbitrator’s authority to effect the goals of arbitration.”
How important is that !?!. On that view, it does not matter if the chosen Rules expressly provide for power to impose sanctions, because sanctions are a remedy, and of course most Rules give arbitrators very broad remedial powers. The critical element is that “remedies” were expressly held to include not only substantive relief to the Parties on the merits of their claims, but also procedural relief to a Party aggrieved by procedural abuse that affects the fairness and integrity of the process.
This is a principle with a considerably broad scope, because it connects the power of the arbitrator over the conduct of parties and their representatives to a textual term found in most domestic and international rules for contract-based and treaty-based arbitration: remedy. Those of you who might wish to dig deeper into the scholarship on this subject will find discourse about the “inherent” or “implied” powers of arbitrators — for example a report of the International Law Association dating from 2014. For simplicity and brevity here, this view is that arbitrators must be considered to have a certain amount of “inherent” power over the orderly and fair conduct of the arbitration process, just as courts are widely assumed to have such powers, because if such powers did not exist, arbitration could not seriously expect to accomplish its declared objectives. If we accept that “remedy” or “relief” includes all or most species of procedural relief, including regulation of the conduct of counsel, including regulation of conditions for counsel to participate in the proceedings, then these issues need not be the subjects of uncertainty based on their absence from the explicit text of the applicable Rules. They are right there, in plain sight.
This solution might not discourage Rules-drafters from making particular powers explicit in their Rules. ADRIC’s 2025 Rules, as I quoted them above, are among many sets of provider rules, domestic and international, that have recognized explicitly a power of the Tribunal to deny to a Party the ability to add or change counsel in the course of the proceedings, a tactic that might be deployed to create an untenable conflict of interest for one or more arbitrators that would require them to withdraw or be removed based on conflict of interest. They have taken this step in order to make it clear that such a change of counsel should not be categorically permitted on the theory that the right to select counsel is a fundamental and unqualified right, because that right could then be invoked abusively.
You may ask, does this “remedial” power also encompass a power to disqualify counsel on grounds that, under the Codes of Conduct of the Bar at the place of arbitration, or where counsel are admitted to practice, would permit a Court to deny counsel the right to continue to appear in a judicial proceeding? This question most commonly pertains to two situations: where counsel has a prior attorney-client relationship with the adverse party, and where counsel might have to be a witness. In some jurisdictions – my home jurisdiction of New York State is one of them – this question has been answered incorrectly from the perspective of arbitration law. The reason for the error is that two dimensions of the regulation of counsel conduct are in play when State-promulgated Codes of Conduct are implicated: one is protecting the integrity of judicial proceedings in the Code-enacting jurisdiction. The other is the regulation of lawyers as a matter of public policy in the interest of citizens of the jurisdiction as existing and potential clients. But when an arbitral tribunal decides that the attorney chosen by respondent should be disqualified only from this case because she had a prior relationship as counsel for the claimant and obtained in that capacity confidences and secrets of the Claimant that could be used to the unfair advantage of the Respondent, this entails no disciplinary action against the attorney. It is only a regulation of the integrity of the arbitration, and affects the eligibility of the lawyer to practice law only in regard to the engagement for that arbitration.
If you seek a more authoritative source for this outcome than I am, especially in Canada, read the decision of the Federal Court of Canada in the case called, informally, the Einarsson case, and, formally, Geophysical Services Inc. et al. v. Canada in its judgment of October 2020. In Einarsson, one attorney on the legal team for Canada in its Trade Law Bureau had previously worked for a third party funder that was funding the Claimants in a NAFTA arbitration by US investors against Canada. The Claimants, instead of putting the disqualification question to the NAFTA arbitral tribunal, put the question to the Federal Court of Canada – first by asking the Trade Law Bureau to remove the lawyer in question (and others with whom she had allegedly shared information) from Canada’s legal team, and then seeking to invoke the Federal Court’s alleged “inherent” jurisdiction over all conflicts of interest of all Canadian lawyers.
The Claimants (as Petitioners in the Federal Court of Canada) argued that the NAFTA tribunal is limited to the jurisdiction conferred by the arbitration agreement and that this type of matter is not provided for in the NAFTA itself, or the relevant legislation (the UNCITRAL Model Law as adopted in Canada) or the UNCITRAL Arbitration Rules. This argument failed to convince the Federal Court. I will not take your time with that portion of the Judgment in which the Federal Court concluded that the Trade Law Bureau’s composition of its legal team was not a public matter reviewable as such. I draw your attention to the Court’s alternative basis for decision, which was that this was a matter for the NAFTA arbitral tribunal to address. I quote:
“Article 5 of the [UNCITRAL] Model Law states that courts should not intervene in [arbitral] proceedings ‘except where so provided in this Law.’ I also note that arbitrators have wide latitude to manage the proceedings before them, which includes setting procedural rules. A valid arbitration agreement could even fail to refer to any procedural rules, in which case the arbitrator would have full latitude to set them (article 19 of the Model Law). Arbitrators can also rule on their own jurisdiction, or lack thereof (article 16 of the Model Law), and on interim measures (article 17 of the Model Law).
…[T]hese principles safeguard the efficiency of the arbitral process. Arbitration is, at its core, a voluntary process whereby the parties can resolve their disputes in a way that is potentially quicker, more efficient, and more cost-effective than the traditional justice system. Requiring the parties to resort to the court system to address procedural and jurisdictional issues would obviously deprive arbitration of its key benefits.”
That, it seems to me, is very sound reasoning, and its combines rather seamlessly the “inherent powers” school of thought with a textual approach to the governing texts applicable to the arbitration, whether rules, treaty or legislation, or all of them.
This is I think a good place for me to stop and yield the floor. But I will leave you with one concluding thought. When you confront a question of arbitral power (or lack of it) to regulate the conduct of counsel, whether by sanction or by exclusion or by conditions upon participation, consider how interpretation of arbitral rules differs from interpretation of a contract. This is not a contract. It is a set of rules adopted usually by a provider, whether domestic or international, private like ADRIC or inter-governmental like UNCITRAL. So, while you should always read rules with reference to what is expressly mentioned and what is not, you should think carefully before reaching a conclusion based on the contract interpretation principle that the express mention of one item implies the exclusion of other related items. (“Expressio unius….”). Consider that it is at least possible that certain powers – like excluding a change of counsel in the middle of the case – are mentioned because they are meant to be universally discouraged – while others, like the power to disqualify counsel based on a conflict of interest, or to sanction a party based on its counsel’s misconduct, are left to be covered by more general declarations of the powers of arbitrators, so that their application will depend, as it should, on close examination by the Tribunal of the circumstances involved.