Relevant principles
11 The effect of r 26.12(2) in the present case - where the return date fixed in the originating application has passed, the pleadings have closed and the respondent has not provided its consent to a discontinuance - is that: (1) the leave of the Court for the filing of the notice of discontinuance is required; and (2) if leave were to be given and the applicant were to file a notice of discontinuance, then the applicant would be liable to pay the respondent's costs unless the Court orders otherwise.
12 The discretion to otherwise order is a manifestation of the broad discretion as to costs conferred upon the Court by s 43 of the Federal Court of Australia Act 1976 (Cth) (FCA Act). However, that discretion is expressly limited by s 570 of the Fair Work Act 2009 (Cth) (FW Act): s 43(1)(b) of the FCA Act; Melbourne Stadiums Ltd v Sautner [2015] FCAFC 20; (2015) 229 FCR 221 at 252 [140] (Tracey, Gilmour, Jagot and Beach JJ; White J agreeing). Section 570 of the FW Act provides:
Costs only if proceedings instituted vexatiously etc.
(1) A party to proceedings (including an appeal) in a court (including a court of a State or Territory) in relation to a matter arising under this Act may be ordered by the court to pay costs incurred by another party to the proceedings only in accordance with subsection (2) or section 569 or 569A.
(2) The party may be ordered to pay the costs only if:
(a) the court is satisfied that the party instituted the proceedings vexatiously or without reasonable cause; or
(b) the court is satisfied that the party's unreasonable act or omission caused the other party to incur the costs; or
(c) the court is satisfied of both of the following:
(i) the party unreasonably refused to participate in a matter before the FWC;
(ii) the matter arose from the same facts as the proceedings.
(emphasis in original)
13 The discretion in s 570(1) of the FW Act to award costs in favour of a party to a proceeding is enlivened only in accordance with ss 570(2), 569 or 569A: s 570(1). In the present case, ss 569 and 569A are not relevant. The respondent relies upon s 570(2)(b) and contends that the applicant has unreasonably performed an act or made an omission that caused the respondent to incur costs.
14 In an earlier judgment in this proceeding - Talbot v Tesolin Consulting Pty Limited trading as Ray White Quakers Hill [2023] FCA 925 (Talbot (No 1)) - I summarised the principles germane to an application for costs founded on s 570(2)(b), as follows:
29. Whether a party behaved unreasonably is a question that is to be determined objectively: Australian and International Pilots Association v Qantas Airways Ltd (No 3) [2007] FCA 879; (2007) 162 FCR 392 at 402 [32] (Tracey J).
30. In Construction, Forestry, Mining and Energy Union v Clarke [2008] FCAFC 143; (2008) 170 FCR 574, the Full Court (Tamberlin, Gyles and Gilmour JJ) made the following observations concerning "an unreasonable act or omission" (at 582 [29]):
… As the authorities indicate, there is a distinction between a party who pursues arguments which are ultimately abandoned or rejected by the Court and a party who commences a proceeding which is misconceived in the sense of being incompetent or unsupportable: Australian and International Pilots Association 162 FCR at 402; Standish v University of Tasmania (1989) 28 IR 129 at 138-139. Simply because a party does not conduct its litigation in the most efficient way does not mean that the Court should exercise its discretion in s 824(2) of the WR Act to make a costs order. ... Indeed, while courts should use the discretion in s 824(2) to ensure that parties to litigation arising from the WR Act do not engage in unreasonable acts and omissions which put the other party to undue expense, they should also be careful not to exercise the discretion with too much haste, given that such haste may discourage parties, for fear of an adverse costs order, from pursuing litigation under the WR Act in the manner which they deem best.
31. The proposition that the discretion is to be exercised with caution is well-established. In Trustee for the MTGI Trust v Johnston (No 2) [2016] FCAFC 190 at [8], the Full Court (Siopis, Collier and Katzmann J) endorsed the following explanation from Mortimer J (as her Honour then was) in Ryan v Primesafe [2015] FCA 8; (2015) 323 ALR 107 at 122 [64]:
… The discretion conferred by the confined terms of s 570(2) should be exercised cautiously, and the case for its exercise should be clear: see Saxena v PPF Asset Management Ltd [2011] FCA 395 at [6] per Bromberg J. The reason for caution is the potential for discouraging parties' pursuit in a complete and robust way of the claims for contravention which they seek to make under the Fair Work Act, or the defence of such claims. The policy behind s 570 is to ensure that the spectre of costs being awarded if a claim is unsuccessful does not loom so large in the mind of potential applicants (in particular, in my opinion) that those with genuine grievances and an arguable evidentiary and legal basis for them are put off commencing or continuing proceedings. It is an access to justice provision. Insofar as it operates to the benefit of respondents, it is designed to ensure respondents feel free to pursue arguable legal and factual responses to the claims made against them. There is an almost identical provision in s 611 of the Fair Work Act, giving the Fair Work Commission a similar costs power, conditioned by similarly-worded considerations. The predecessor provisions, and the conscious broadening of the statutory terms used in s 570, are traced by the Full Court in Australasian Meat Industry Employees' Union v Fair Work Australia (No 2) (2012) 203 FCR 430; [2012] FCAFC 103 at [3]-[4] per Jessup and Tracey JJ.
32. To similar effect, see Hutchinson v Comcare (No 2) [2017] FCA 370 at [7] to [9] (Bromberg J).
(emphasis in original)