Essential preconditions
42 In John Holland v Cardno MBK, Einstein J expressed the view that, in order to satisfy the statutory scheme, a payment claim did not need to be "comprehensible by the respondent in terms of its supporting materials": ibid at [21]. However, as Hodgson JA notes at [25] above, the claim must "identify" the work, goods or services to which the payment sought relates. The term "identify" should be given a purposive construction: what must be done must be sufficient to draw the attention of the principal to the fact that an entitlement to a payment is asserted, arising under the contract to which both the contractor and the principal are parties. In that sense, the claim, to be valid, must be reasonably comprehensible to the other party. If the entitlement does not arise absent the supply of supporting documentation, then the claim must be accompanied by that documentation, unless it has already been provided. On the other hand, it may be that the distinction between a "claim" and a "reply" by way of a payment schedule (see s 14(1)), on the one hand, and "submissions" on the other, suggest that the precise contractual basis for the entitlement may not need to be identified in the claim, nor addressed in the response. Rather, the claim should assert, in full, the factual basis upon which it is made, including the provision of documents where necessary, whereas the reliance on a relevant contractual provision may be dealt with by way of submissions, if the matter comes before an adjudicator. It would then follow that the requirement in s 20(2B) that the "reasons" for withholding payment must be limited to those identified in the payment schedule, would not preclude the principal from undertaking the same exercise it its submissions, namely the identification of the absence of justification in terms of specific contractual provisions.
43 The next question is whether the existence of a valid payment claim, which complies with s 13(2) is an essential precondition to a valid determination. A related question is whether, even if there is a valid claim, a determination which appears to go beyond the parameters of the claim is itself a valid determination: see [24] and [26] above.
44 For reasons explained in Hargreaves at [72]-[77], it is not possible to construe s.13(2) as doing otherwise than imposing mandatory requirements with respect to the making of payment claims. However, it does not follow that the Court should set aside a determination in circumstances where, in its view, the claim does not satisfy those requirements, or the determination goes beyond the parameters of the claim, properly understood. Intervention on that basis will only be justified if the legislature has imposed an objective requirement, rather than one which the adjudicator has power to determine. It is well established that the mere fact that a requirement is objectively expressed, rather than by reference to the satisfaction of the officer or tribunal concerned, is not decisive of the construction issue. Indeed, in relation to inferior courts, it has been said that there is a strong presumption against any jurisdictional qualification being interpreted as contingent upon the actual existence of a state of facts, as opposed to the decision-maker's opinion in that regard: see Parisienne Basket Shoes Pty Ltd v Whyte (1938) 59 CLR 369 at 391 (Dixon J). A factor favouring that approach is "the inconvenience that may arise from classifying a factual reference in a statutory formulation as a jurisdictional fact": Timbarra Protection Coalition Inc v Ross Mining NL (1999) 46 NSWLR 55 at 72 (Spigelman CJ).
45 In the present case, three factors militate in favour of treating elements identified in s 13(2) as properly dependent upon the satisfaction or opinion of the adjudicator. First, what is or may be a sufficient identification of matters for the purposes of a claim falls within the special experience which a qualified adjudicator is intended to bring to the task and is one which may well require evaluative judgment. Secondly, the requirement relates to a procedural step in the claim process, rather than some external criterion. Thirdly, the overall purpose of the Act, as reflected in its objects and procedures, is to provide a speedy and effective means of ensuring that progress payments are made during the course of the administration of a construction contract, without undue formality or resort to the law.
46 In my view the omission of reference to s 13(2) in the list of mandatory requirements identified in Brodyn, should be understood as giving effect to these principles.
47 It does not follow that the formation of a relevant opinion by an adjudicator with respect to compliance with s 13(2) will in all circumstances be beyond review. The principle stated by Latham CJ in R v Connell; Ex parte Hetton Bellbird Collieries Ltd (1994) 69 CLR 407 at 432, as applied by Gummow J in Minister for Immigration and Multicultural Affairs v Eshetu (1999) 197 CLR 611 at [133], was to the following effect:
"If the opinion which was in fact formed was reached by taking into account irrelevant considerations or by otherwise misconstruing the terms of the relevant legislation, then it must be held that the opinion required has not been formed. In that event the basis for the exercise of power is absent, just as if it were shown that the opinion was arbitrary, capricious, irrational or not bona fide."