The Common Law
42Section 62 of the Act is not, however, the sole source of the obligation to give reasons for decisions. There is a common law duty to give reasons "apart from any express requirement of any statute" - Pettitt v Dunkley [1971] 1 NSWLR 376 at 387. The duty applies to the Tribunal as well as to courts - Campbelltown City Council v Vegan (2006) 67 NSWLR 372 at [109]ff and the ADT Appeal Panel decision in Supermarkets Pty Limited v Xu [2009] NSWADTAP 28. In Supermarkets Pty Limited, the Appeal Panel of the ADT said at [56]:
56 The Tribunal is obliged to give adequate reasons. Appeal Panels of the Tribunal have routinely accepted the principles enunciated in the line of cases that include Soulemezis v Dudley (1987) 10 NSWLR 247, Mifsud v Campbell (1991) 21 NSWLR 725 and Beale v Government Insurance Office of New South Wales (1997) 48 NSWLR 430. The Tribunal is a deliberative body engaged in the exercise of a judicial function when hearing and determining applications, giving reasons for decision and making final orders. See recently, Campbelltown City Council v Vegan (2006) 67 NSWLR 372, esp at [109] ff Basten JA. The Commonwealth authorities relating to Commonwealth tribunals are to similar effect. See, for example, Australian Broadcasting Tribunal v Bond (1990) 170 CLR 321 at 366; Dornan v Riordan (1990) 24 FCR 564 at 568; Edwards v Guidice (1999) 169 ALR 89 at [10], [43].
43There are two bases identified in the authorities for the imposition of this duty. First, it facilitates a litigant, who may be aggrieved, exercising rights he or she may have to appeal and thus ensures that any appeal right is not rendered nugatory or illusive - Pettitt v Dunkley [1971] 1 NSWLR 376 at 387.
44Secondly, reasons are required since a failure to provide sufficient reasons promotes "a sense of grievance" and denies "both the fact and the appearance of justice having been done", thus working a miscarriage of justice: see Keith v Gal [2013] NSWCA 339 at [109], citing Mifsud v Campbell (1991) 21 NSWLR 725 at 728; Beale v Government Insurance Office of New South Wales (1997) 48 NSWLR 430 at 442.
45A general discussion of reasons for decision in the context of the Tribunal is found in the Appeal Panel's decision in Collins v Urban [2014] NSWCATAP 17 [43] to [64]. As part of that discussion the Appeal Panel drew attention to the qualifications on and flexibility in the obligation to give reasons for decision at [57] as follows:
57 A number of propositions can be derived from the authorities concerning the nature and extent of the duty to give of reasons as follows:
(1) notwithstanding that there have been many cases (some of which are collected in De Iacovo v Lacanale (1957) VR 553, at pp 558-559) in which it has been held that it is the duty of a judge, magistrate or other relevant decision maker to state reasons, that does not mean that a decision maker must give his or her reasons in every case. There is no "inflexible rule of universal application" that reasons should be given for judicial decisions. Whilst it is no doubt right to describe the requirement to give reasons as "an incident of the judicial process", it is subject to the qualification that it is a normal but not a universal incident - Public Service Board of New South Wales v Osmond (1986) 159 CLR 656 at 667;
(2) the content and detail of the reasons for decisions to be provided will vary according to the nature of the jurisdiction which the body in question is exercising and the particular matter the subject of the decision - Wainohu v New South Wales (2011) 243 CLR 181 at [56];
(3) the administration of justice in this regard requires a pragmatic and functional approach to the obligations imposed upon decision makers at first instance - Resource Pacific Pty Ltd v Wilkinson [2013] NSWCA 33 at [46];
(4) not only is the obligation not universal in nature, but it is variable in its content and whilst transparency in decision-making is an important value, it is not cost free, and may involve separate parameters of quantity and quality - Resource Pacific Pty Ltd v Wilkinson [2013] NSWCA 33 at [48].
46These qualifications or limitations do not, however, provide a justification for failing to meet the requirements of s 62(3) where reasons are given. They do, however, indicate that the extent of the Tribunal's reasons for decision should reflect the nature, subject matter, complexity and importance of the proceedings. Small, short and simple claims do not require elaborate reasons for decision.