C.1 Causation
29 It is paramount that for compensation to be awarded under s 545, the Court must be satisfied that there exists the appropriate causal connection between the contravention and the loss claimed: Australian Licenced Aircraft Engineers Association v International Aviation Service Assistance Pty Ltd [2011] FCA 333; (2011) 193 FCR 526 (at [423] 592 per Barker J). The appropriate compensation to be awarded under s 545 is limited to the loss caused by the contravention and the burden is on the claimant to prove its loss.
30 Determining whether there is a causal connection involves "not an examination of what did happen, but an assessment of what would or might have occurred, but which could no longer occur (because of the contraventions)": Maritime Union of Australia v Fair Work Ombudsman [2015] FCAFC 120 (at [28] per Allsop, Mansfield and Siopis JJ). In other words, it might be said it involves (as with causation inquiries in other areas of the law) consideration of the counterfactual. With reference to s 545(2)(b) of the FWA, the Full Court (at [30]) reasoned that "[w]hat such damage or loss is (in the present context) that must be proved on the balance of probability will be governed by an understanding of the statute" and the Court referenced the "protective purpose" of provisions such as s 346 of the FWA:
What such damage or loss is (in the present context) that must be proved on the balance of probability will be governed by an understanding of the statute. Given the evident protective purpose of provisions such as s 792 of the WR Act and s 346 of the FW Act, there would be no sensible statutory purpose in denying a proposition that the damage or loss in relation to prospective employment can be constituted by the loss of an opportunity or chance to be considered for employment as a result of, or because of, the contravention (which then has to be given a value to inform the order for compensation); and there would be no sensible statutory purpose in limiting the compensation to damage or loss proved by reference to the proof of events that would, on the balance of probability, have or have not occurred. Thus, if the relevant contravention by a party has prejudiced a person in prospective employment, it would conform entirely with the statutory purpose to identify the damage or loss by reference to, indeed as, that prejudice. Depending on the circumstances, such prejudice may best be seen as the loss of the chance or opportunity of particular employment. That certainly was the relevant prejudice here, and it can be seen to have been proved on the balance of probability - indeed, to the point of demonstration.
31 Context is important. Notwithstanding this, it is useful to consider the question of causation in the FWA in a way that involves at least some appreciation of how causation operates within the law generally, and also in the context of statutory compensation for breaches of other norms of conduct. In this regard, it is noteworthy that the satisfactory approach to the issue of causation has proved to be one of the most troublesome issues to have vexed the High Court in recent decades.
32 It might be said that through a long process the High Court has embraced the observation of Mahoney JA in Barnes v Hay (1988) 12 NSWLR 337 (at 353), taken up by McHugh J in Henville v Walker [2001] HCA 52; (2001) 206 CLR 459 (at 491 [98]) and repeated by Kirby J in Travel Compensation Fund v Tambree [2005] HCA 69; (2005) 224 CLR 627 (at 647 [60]), that the determination of causation is a "normative decision" which involves a "functional evaluation of the relationship and the purposes and policy of the relevant part of the law".
33 In the context of s 82 of the Trade Practices Act 1974 (Cth) (TPA), in I & L Securities Pty Limited v HTW Valuers [2002] HCA 41; (2002) 210 CLR 109, Gleeson CJ said (at 119 [26]):
The relationship between conduct of a person that is in contravention of the statute, and loss or damage suffered, expressed in the word 'by', is one of legal responsibility. Such responsibility is vindicated by an award of damages. When a court assesses an amount of loss or damage for the purpose of making an order under s 82, it is not merely engaged in the factual, or historical, exercise of explaining, and calculating the financial consequences of, a sequence of events, of which the contravention forms part. It is attributing legal responsibility; blame. This is not done in a conceptual vacuum. It is done in order to give effect to a statute with a discernible purpose; and that purpose provides a guide as to the requirements of justice and equity in the case. Those requirements are not determined by a visceral response on the part of the judge assessing damages, but by the judge's concept of principle and of the statutory purpose.
34 In summary, and at some risk of oversimplification, the more recent pronouncements of the High Court on causation in a statutory context emphasise that:
(1) the answer to a question of causation may differ according to the purpose for which the question is asked: Travel Compensation Fund (642 [45] per Gummow and Hayne JJ);
(2) the attempted application of "common sense" alone is of little utility: Allianz Australia Insurance Ltd v GSF Australia Pty Ltd [2005] HCA 26; (2005) 221 CLR 568 (at 596-8 [96]-[100] per Gummow, Hayne and Heydon JJ); Travel Compensation Fund (at 645 [45] and 646-7 [58] per Kirby J);
(3) the application of a "but for" test has an important role as a negative criterion (in that it will usually exclude causation if not satisfied), but is inadequate as a comprehensive positive test: Travel Compensation Fund (at 638 [25] per Gleeson CJ), citing Medlin v State Government Insurance Commission (1995) 182 CLR 1 (at 6 per Deane, Dawson, Toohey and Gaudron JJ); Marks v GIO Australia Holdings Ltd [1998] HCA 69; (1998) 196 CLR 494 (at 512-3 [42] per McHugh, Hayne and Callinan JJ);
(4) the application of tests of causation at common law can provide a useful analogy but cannot confine the statute: Marks v GIO Australia Holdings (at 512 [41] and 529 [103] per Gummow J); Murphy v Overton Investments Pty Limited [2004] HCA 3; (2004) 216 CLR 388 (at 407 [44] per Gleeson CJ, McHugh, Gummow, Kirby, Hayne, Callinan and Heydon JJ); and
(5) factors relevant to the existence of causation in the relevant statutory sense will include:
(a) the purpose of the particular cause of action;
(b) the nature and scope of the defendant's obligation in particular circumstances: Allianz Australia Insurance Ltd (at 596-8 [96]-[100] per Gummow, Hayne and Heydon JJ); Travel Compensation Fund (at 645 [45] per Kirby J).
35 I fail to see why, on the issue of causation, this reasoning which developed as applicable to other statutory schemes that provide for compensation for breach of civil remedy provisions would not be applicable in the context of s 545(2)(b) of the FWA. Granted, a given passage in a statute must be construed by reference to the context in which the particular phrase appears and read in a manner which gives effect to its presumed legislative object and purpose: see Project Blue Sky Inc v Australian Broadcasting Authority [1998] HCA 28; (1998) 194 CLR 355 (at 381 [69] per McHugh, Gummow, Kirby and Hayne JJ). But the words "because of" (and other like formulations of a test for causation) have a well-established meaning in the context of principles of statutory compensation generally, and like wording is used elsewhere.
36 Provisions that employ like wording in other statutory schemes include (for example) sections 236, 237 and 238 of the Australian Consumer Law (ACL) and s 12GBB(5) of the Australian Securities and Investments Commission Act 2001 (Cth). There is no need to go further into these general principles of causation, save merely to note that even if the Referee had to form a view concerning legal causation for the purposes of answering the questions posed in relation to factual causation, the approach adopted of needing to prove some sort of sole, proximate prevailing or substantial cause in order to establish the necessary causal connection is, with respect, misconceived. In this regard, it is well to remember the comments of Gaudron, Gummow and Hayne JJ in I & L Securities (at 127-8 [55]-[56]):
If there is a contravention of the Act and, following that contravention, a person suffers loss or damage, it may be possible to identify several features of the history of events as having contributed to the person suffering loss. To take the simple example of a person who suffers loss or damage following a person making a misleading or deceptive statement, the loss may be said to have been caused by the combined effect of the making of the statement and the reliance on it by the person who suffers loss. Sometimes it will be open to say that the person who relied on the statement was foolish to do so or, at least, did not take reasonable care to protect his or her own interests. Similarly, to take a further example, if there is a contravention of s 46 of the Act by a corporation having a substantial degree of market power deterring a person from engaging in competitive conduct in that market, it may, in some circumstances, be open to say that the person deterred could, or even should reasonably, have made some competitive response different from the response it did. In those cases it may well be that the loss or damage which has been suffered would not have been suffered but for each of the persons who suffered loss acting, or omitting to act, as they did.
There may be many acts or omissions that could be said to have contributed to the happening of an event. As has often been mentioned in learned articles on the subject of causation, the decision of a tortfeasor's great-great grandmother to have children can be identified as one factual cause for an event which is the subject of litigation. To search for the single cause of an event is, therefore, to pursue an illusion. And, much more often than not, to speak of the "effective cause" or the "proximate cause" (or to use some similar expression) is to hide important assumptions that are made, or conclusions that are reached, about the attribution of responsibility for particular kinds of act or omission. That is why it is necessary to understand the purpose for making some inquiry about causation. Only when the purpose of the inquiry is known is it possible to identify and articulate how and why some circumstances are extracted "out of the whole complex of antecedent conditions of an event'" and identified by the law as a cause of it.
37 Of course, this is why it is trite law that the question presented by s 82 of the TPA and cognate provisions is not an inquiry as to what the sole cause of the loss and damage alleged was; it is enough to demonstrate that the contravention of a relevant provision of the Act was a cause of the loss and damage sustained. Of course, a provision such as s 545 is better contrasted with s 87 of the TPA and similar provisions, rather than s 82. It relates to a range of possible orders that can be made by the Court, including orders relating to compensation, and involves, by the use of the word "may", a discretion: see s 33(2A) of the Acts Interpretation Act 1901 (Cth). Authorities in the industrial area have developed an approach to the quantification which, given the purposes of the statute, sets out the way in which that discretion is said to be exercised. There is no need, for present purposes, to dwell further on these matters.