[57] It can thus be said that the appellant’s case regarding the jurisdiction referred to in s 27(1) of the CIPAA, is the subject matter of the claim and the cause of action as that identified under the relevant provision of the construction contract. By s 27(2) of the CIPAA, the parties may by consent extend the jurisdiction of the adjudicator to cover other matters. A typical example will be that of other progress claims falling due before the adjudication commences. Section 27(1) of the CIPAA has nothing to do with the grounds of the claim or the reasons for opposing the claim, [58] In contrast to jurisdiction, the ’powers’ of the adjudicator are listed in ss 25 and 26 of the CIPAA under the specific heading of ‘Powers of the Adjudicator”. It follows that an adjudicator may exercise all or any of the powers under ss 25 and 26 of the CIPAA so long as he keeps within his jurisdiction in adjudicating only the subject matter referred to him pursuant to ss 5 and 6 of the CIPAA. [94] Relying next on section 9 of CIPAA which the Court of Appeal said the Federal Court in View Esteem [paragraphs [41] and [46]] regarded together with sections 10 and 11 as “pivotal and not mere formal manifestations of the dispute”, the Court of Appeal found the non-plea of clause 36.6 as “fatal” to the appellant’s case. At paragraph [32], the Court of Appeal held that the “adjudicator had acted in excess of his jurisdiction when he decided on matters never raised and pleaded in the PC, the Payment Response (“PR”) and all the adjudication pleadings”. [95] With respect to the Court of Appeal, that conclusion is erroneous. Aside from my earlier deliberations on the issue of “pleadings” in adjudication, that there is none and certainly not “pleadings” with the attendant principles and ramifications under the Rules of Court 2012 and the relevant caselaw, I find that the Court of Appeal has conflated subject matter jurisdiction as provided under section 27 with documentational and procedural requirements under section 5. [96] I have dealt with this aspect to some extent earlier; that even if the adjudicator had for a moment and for argument’s sake, referred to or relied on clause 36.6 and such clause was not raised by the appellant in the payment claim or even the adjudication claim [the facts show otherwise] such reference or reliance is not fatal to the appellant’s case by reason of non-compliance of section 5(2)(b). Section 5 deals with the requirements in a payment claim whilst section 27 deals with jurisdiction of the adjudicator. Both provisions are distinct and separate. [97] The dicta in View Esteem has been mis-appreciated by the Court of Appeal. The Federal Court was actually correcting the reasoning of the High Court which had taken the view that the adjudication claim and adjudication responses were mere formal manifestations of the dispute already set out in the payment claim and the payment response. At the High Court, the appellant was disallowed from raising defences or issues in the adjudication response which were not raised in the payment response. In fact, the appellant had not served any payment response and under section 6(4) was deemed to have denied the claim. The Federal Court disagreed, holding that the appellant was entitled to raise any defence or issue not raised earlier as the existence of the two-stage process did not warrant giving a reduced importance to the adjudication pleadings and a greater, if not overriding significance to the initial documents, namely the payment claim and the payment response, under sections 5 and 6. [98] The effect of this Court’s decision in View Esteem in respect of section 27 is simply this – that the adjudicator’s jurisdiction in relation to any dispute is limited to the matter of the claim which was referred to adjudication under sections 5 and 6. The subject of the claim is the limiting factor. This was explained by the Federal Court to refer to the cause of action identified by reference to the applicable clause of the construction contract. [99] An example was given to illustrate what this meant, that if the payment claim relates to progress claim No. 28, then adjudicator’s jurisdiction is limited to this progress claim “and nothing else”. The payment response is likewise limited to an answer to this progress claim and no other. The details of the subject of the claim are those provided under section 5(2)(a) to (d). The Federal Court added that “section 27(1) of the CIPAA has nothing to do with the grounds of the claim or the reasons to oppose the claim”. I understand “grounds of the claim” to be the supporting basis for the claim; and the insufficiency or absence of grounds do not deprive of the adjudicator of jurisdiction. [100] In these appeals, the subject of the claim and the cause of action was always about the single dispute over the claim for professional fees. Nothing else. The jurisdiction of the adjudicator was to adjudicate on this subject claim and not say, adjudicate on the lawfulness of the termination, or even the issue of breach. The appellant had set out the amount, due date for payment, details of the cause of action for this claim for the professional fees with certain clauses of the underlying contract identified, description of the work and, a statement that the claim is made under the Act. All this information had to be compressed or summarised as “the nature and description of the dispute and the remedy sought” when preparing the adjudication claim, as required under sections 8 and 9. [101] The respondent, not in the least confused and being fully aware of the thrust of the appellant’s claim, put up a meaningful response. Unfortunately, none of the responses as detailed by the respondent passed muster with the adjudicator, and the claim was allowed. This, does not render the payment claim and ultimately the adjudication decision reached liable to be set aside for the reasons complained of by the respondent and agreed to by the Court of Appeal. [102] Consequently, the answer the Question 2 must also be answered in the negative. [103] Finally, Question 3: In a CIPAA award, does the Adjudicator’s consideration of a specific clause in the construction contract, not specifically stated in the Payment Claim or Adjudication Claim, without inviting parties to further submit on the said clause, amount to a breach of natural justice or an act excess in jurisdiction, such that the said award ought to be set aside? [104] Once again, I refer to my earlier findings that the existence of clause 36.6 which purportedly formed the basis of the adjudicator’s decision was actually cited in the payment claim. Hence, there was and is no basis for the respondent’s complaint and the disposal in the manner that the Court of Appeal did. [105] Again, for the development of the law, I will nevertheless answer this question. And, once again, my answer is in the negative for the following reasons. [106] It is unfortunate that principles more commonly associated with public law are now more frequently resorted to in the field of private commercial law where bargains are struck at arm’s length and with consideration. Although these principles may apply in appropriate circumstances and conditions with legislation such as CIPAA providing for its invocation for the setting aside of adjudication decisions as was the occasion in these appeals [see section 15], the law surrounding their application actually is necessarily different. [107] The principles of natural justice are normally understood in relation to the fairness of the procedures involved; the concept of audi alteram partem and nemo judex in sua causa, that there must be a fair hearing and no bias or conflict of interest on the part of the adjudicator. It would be wrong to say that these principles do not apply to adjudication proceedings; they obviously do. To a large extent, these principles as applied in the field of arbitration apply equally to adjudication. However, the extent to which the rules of natural justice apply depends on the circumstances. [108] Several decisions of one of the earliest jurisdictions to implement statutory adjudication, that is the United Kingdom under its Housing Grants, Construction Regeneration Act of 1996, provide some helpful guidelines on this area of law. [109] In Balfour Beatty Construction Ltd v Lambeth London Borough Council [2002] EWHC 597, Humphrey Lloyd QC held that the principles of natural justice applied to adjudicators and adjudication but these should relate to matters which are either decisive or of considerable importance to the outcome and not peripheral or irrelevant. In other words, it is the test of materiality: Nevertheless, in my judgment, that which is applicable in arbitration is basically applicable to adjudication but, in determining whether a party has been treated fairly or in determining whether an adjudicator has acted impartially, it is very necessary to bear in mind that the point or issue which is to be brought to the attention of the parties must be one which is either decisive or of considerable potential importance to the outcome and not peripheral or irrelevant. It is now clear that the construction industry regards adjudication not simply as a staging post towards the final resolution of the dispute in arbitration or litigation but as having in itself considerable weight and impact that in practice goes beyond the legal requirement that the decision has for the time being to be observed. Lack of impartiality or of fairness in adjudication must be considered in that light. It has become all the more necessary that, within that rough nature of the process, decisions are still made in a basically fair manner so that the system itself continues to enjoy the confidence it now has apparently earned. The provisional nature of the decision also justifies ignoring non-material breaches. Such errors, if apparent (as they usually are), will be rectified in any negotiation and settlement based upon the decision. The consequence of material issues and points is that the dispute referred to adjudication will not have been resolved satisfactorily by any fundamental standard and the chances of it providing the basis for a settlement are much less and the chances of it proceeding to arbitration or litigation are much greater. However the time limits, the nature of the process and the ultimately non-binding nature of the decision, all mean that the standard required in practice is not that which is expected of an arbitrator. Adjudication is closer to arbitration than an expert determination but it is not the same. [emphasis added] [110] Next, Carillion Construction Ltd v Devonport Royal Dockyard Ltd [2005] EWCA 1358, [2006] BLR 15 where Chadwick LJ opined that it was not the task of the adjudicator to act as arbitrator or judge. According to His Lordship, the statutory scheme had subordinated the need to have the ‘right’ answer to the need to have an answer quickly, that- “The objective which underlies the 1996 Act and the statutory scheme requires the Courts to respect and enforce the adjudicator’s decision unless it is plain that the question which he has decided was not the question referred to him or the manner in which he has gone about his task is obviously unfair. It should be only in rare circumstances that the Courts will interfere with the decision of the adjudicator.” [111] In Cantillon Limited v Urvasco Ltd [2008] EWHC 282, Akenhead J rejected the complaint that a failure by the adjudicator to allow one of the parties a reasonable opportunity to make submissions and adduce evidence in relation to the claim for prolongation costs amounted to a breach of natural justice. According to His Lordship, a breach of natural justice must first be established. But that is not enough to set aside an adjudication decision. The breach, if established, must be more than peripheral; it must not be irrelevant but be material in that it is either or of considerable importance to the outcome of the resolution of the dispute. [112] Whether the issue is decisive or of considerable potential importance, is peripheral or irrelevant is a question of degree which must be assessed by the judge. It is only if the adjudicator goes off on a frolic of his own, decide the case on a factual or legal basis which has not been argued or put forward by either side, without giving the parties an opportunity to comment or put in relevant evidence, if appropriate, that the breach may be said to be material rendering the decision reached liable to be set aside. [113] Similarly, in Primus Build Ltd v Pompey Centre Ltd [2009] EWHC 1487, it was held that any alleged breach of natural justice must be examined critically for materiality and significance to the decision actually made by the adjudicator. It must go to “the heart of the adjudicator’s decision”. [114] In my view, if the “frolic” of the adjudicator makes no difference to the outcome, the decision must be enforced – see also Herbosch-Kiere Marine Contractors Ltd v Dover Harbour Board [2012] EWHC 84; ABB Ltd v Bam Nuttall Ltd [2013] EWHC 1983; Roe Brickwork Ltd v Wates Construction Ltd [2013] All ER (D) 105; AECOM Design Build Ltd v Staptina Engineering Services Ltd [2017] EWHC 723. [115] In these appeals, the reference by the learned adjudicator to clause 36.6 did not have the same materiality or significance. Quite aside from the fact that the parties, especially the respondent was fully aware of the entire clause 36, it was also a matter of contractual construction which the adjudicator was entitled to decide. [116] It is thus, a relatively high threshold that must be crossed before the complaint is sustainable. [117] In Australia, the position is very much the same. The New South Wales Court of Appeal required that there should be substantial denial of natural justice to the same level as a “basic and essential requirement” which underpins the enforceability of an adjudication determination; that there must be materiality in the breach complained of – see Brodyn Pty Ltd t/as Time Cost and Quality v Davenport [2004] NSWCA 394; and Shellbridge Pty Ltd v Rider Hunt Sydney Pty Ltd [2005] NSWSC 1152. [118] In Shellbridge, Barrett J commented that “It cannot be intended that an adjudicator working to the tight statutory timetable will be as painstaking as a judge who has reserved judgment in a case involving the same claims under the same construction contract. The statutory intention is that the adjudicator is to work quickly and this may militate against the standards of thoroughness and detail generally expected in arbitration or litigation. There is the added factor that adjudicators are not necessarily legally qualified, and the parties not legally represented or may have prepared the documents themselves – see Watpac Constructions (NSW) Pty Ltd v Austin Corp Pty Ltd [2010] NSWSC 168, where McDougall J opined that “fairness is not abstract but practical … the concern of the law is to avoid practical injustice”. [119] In Edelbrand Pty Ltd v H M Australia Holdings Pty Ltd [2012] NSWCA 31, the complaint of procedural unfairness related to the lack of opportunity to make submissions on a case authority relied on by the adjudicator. The NSW Court of Appeal scrutinised the records and concluded that the adjudicator’s consideration of a case authority which was not cited by either party did not make any difference to the conclusion reached based on the evidence before him and so the complaint was rejected and the enforcement ordered. See discussions of this case in ABC Glass & Aluminium Pty Ltd v Nik Nominee Pty Ltd [2019] QSC 17 by the Queensland Supreme Court. [120] Singapore has followed that same approach generally adopted in arbitration jurisprudence with Judith Prakash J leading the way in SEF Construction Pte Ltd v Skoy Connected Pte Ltd [2009] SGHC 257, [2010] 1 SLR 733; followed by Vinodh Coomaraswamy J in Hauslab Design & Build Pte Ltd v Vinod Kumar Ramgopal Didwania [2016] SGHC 222, [2017] 3 SLR 103. [121] After examining the various jurisdictions on this thorny issue, Chow Kok Fong in his Security of Payments and Construction Adjudication [Third Edition, LexisNexis 2022, page 732] concluded that- “… the bar for challenging a tribunal’s decision on the ground of breach of natural justice is high. Again, drawing from the position in arbitration, the Courts are alive to attempts to disguise what is in substance ‘an appeal on the legal merits’ of an arbitrator’s (or in this case adjudicator’s) decision as a challenge on the grounds of procedural fairness. In Soh Beng Tee & Co Pte Ltd v Fairmount Development Pte Ltd, the Court of Appeal accepted the submission that ‘an award should be read generously such that only meaningful breaches of natural justice that have actually caused prejudice are ultimately remedied. As succinctly stated in a leading arbitration text, ‘the issue is whether the arbitrator was denied the benefit of arguments or evidence that had a real as opposed to a fanciful chance of making a difference in his deliberations’. Furthermore, even in arbitration, it is considered that the concept of a party’s right to be heard should not be subject to the same rigours of the same concept as understood in administrative law. Arbitration has been rightly distinguished as being much less concerned with protecting the vulnerable against arbitrary governmental or quasi-governmental action as a dispute resolution process. It has been said that one of the objectives of international arbitration is for businesses to achieve ‘expeditious, economical and final determination’. While an adjudicator’s determination enjoys only temporary finality, the objectives of expedition and economy are perhaps even more deeply entrenched in the legislative intent behind the Singapore SOP Act.” [122] Again, the threshold is high. What then is the position in Malaysia? Here, I will similarly draw on the relevant jurisprudence in arbitration for this third question. In this regard are the two latest decisions of this Court on this same issue raised in arbitration – Pancaran Prima Sdn Bhd v Iswarabena Sdn Bhd & Another Appeal [2021] 1 MLJ 1 and Master Mulia Sdn Bhd v Sigur Rus Sdn Bhd [2020] 12 MLJ 198. [123] In Pancaran Prima Sdn Bhd, this Court dealt with a similar complaint of breach of natural justice by looking at the right of the arbitrator to draw from his own knowledge and expertise on any fact in issue which the arbitrator is acquainted with. Having done so, the Federal Court concluded that the arbitrator was entitled to draw from his own expertise and the allegation of breach of natural justice was rejected. In Master Mulia Sdn Bhd, the Federal Court affirmed the decision of the Court of Appeal which had set aside an arbitration award on the ground that there was a material breach of natural justice. A claim which would have been otherwise dismissed was instead allowed by the learned arbitrator who relied on a different causative aspect, that aspect or point being one which was drawn from the arbitrator’s own expertise but which he did not alert the parties or invite their comments before making his award. [124] Vernon FCJ writing the judgment of the Federal Court in Master Mulia Sdn Bhd examined the principles behind the UNCITRAL Model Law which underlay the Arbitration Act of 2005 [Act 646] and the approach adopted by several other jurisdictions when dealing with an application to set aside an arbitration award on the ground that there was a breach of natural justice. At paragraph 53, His Lordship set out the following guiding principles: [53] In the light of the above we think that the guiding principles on the exercise of residual discretion when an application for setting aside an award is grounded on breach of natural justice may be stated as follows: