the principles
11 The courts are generally reluctant to allow separate trials of the issues that arise in a proceeding. Thus, the starting point for any consideration as to whether O 29 r 2(a) should be invoked is one of moderate resistance: see Tallglen Pty Ltd v Pay TV Holdings Pty Ltd (1996) 22 ACSR 130 at [141]-[142].
12 In Tepko Pty Ltd v Water Board (2001) 206 CLR 1; [2001] HCA 19 at [168], Kirby and Callinan JJ highlighted some of the difficulties involved as follows:
The attractions of trials of issues rather than of cases in their totality, are often more chimerical than real. Common experience demonstrates that savings in time and expense are often illusory…
13 French J echoed these concerns in Olbers Co Ltd v Commonwealth of Australia (No 3) [2003] FCA 651 ("Olbers") at [31]:
[A]ny prophesied economies are to be balanced against the fragmentation of the trial of the issue. Experience in the courts over many years has demonstrated that fragmentation of proceedings rarely result in any saving of time in the long run and that projections as to costs savings are likely at best to be speculative
14 Most recently, the Full Court provided a general warning against the premature separation of issues at trial in Spirits International B.V. v Federal Treasury Enterprise (FKP) Sojuzplodoimport [2011] FCAFC 69 ("Spirits International") at [40]:
[I]t is essential that any separation of issues occur only when all of the issues in the litigation are defined with clarity. Unless that is done, it will be difficult to evaluate the full repercussions of such a decision on the proceedings as a whole. Moreover, once a separate issue has been ordered, heard, decided and any appeals finalised, often the ingenuity of lawyers will identify some further permutation that was not covered by the separate issue.
15 However, none of these warnings goes so far as to create a presumption against the operation of O 29 r 2. It is a matter that is entirely within the discretion of the Court, noting that, as with all such discretions, it must be exercised judicially: see Idoport Pty Ltd v National Australia Bank Ltd [2000] NSWSC 1215 at [7] per Einstein J.
16 The principles governing the operation of O 29 r 2(a) were comprehensively summarised by Branson J in Reading Australia Pty Ltd v Australian Mutual Provident Society [1999] FCA 718 ("Reading") at [8] as follows (excluding case references):
(a) the term "question" in O 29 r 1 includes any question or issue of fact or law in a proceeding. The distinction in the rule between an "issue" and a "question" is the distinction between that which, when resolved, will result in an adjudication in favour of one party or the other, being an "issue", and less decisive matters of dispute being "questions";
(b) a question can be the subject of an order for a separate decision under O 29 r 2 even though a decision on such a question will not determine any of the parties' rights;
(c) however, the judicial determination of a question under O 29 r 2 must involve a conclusive or final decision based on concrete and established or agreed facts for the purpose of quelling a controversy between the parties;
(d) where the preliminary question is one of mixed fact and law, it is necessary that the question can be precisely formulated and that all of the facts that are on any fairly arguable view relevant to the determination of the question are ascertainable either as facts assumed to be correct for the purposes of the preliminary determination, or as agreed facts or as facts to be judicially determined;
(e) care must be taken in utilising the procedure provided for in O 29 r 1 to avoid the determination of issues not "ripe" for separate and preliminary determination. An issue may not be "ripe" for separate and preliminary determination in this sense where it is simply one of two or more alternative ways in which an applicant frames its case and determination of the issue would leave significant other issues unresolved;
(f) factors which tend to support the making of an order under O 29 r 2 include that the separate determination of the question may -
(i) contribute to the saving of time and cost by substantially narrowing the issues for trial, or even lead to disposal of the action; or
(ii) contribute to the settlement of the litigation;
(g) factors which tell against the making of an order under O 29 r 2 include that the separate determination of the question may -
(i) give rise to significant contested factual issues both at the time of the hearing of the preliminary question and at the time of trial;
(ii) result in significant overlap between the evidence adduced on the hearing of the separate question and at trial - possibly involving the calling of the same witnesses at both stages of the hearing of the proceeding. This factor will be of particular significance if the Court may be required to form a view as to the credibility of witnesses who may give evidence at both stages of the hearing of the proceeding; or
(iii) prolong rather than shorten the litigation.
17 See also Olbers at [7]-[8] and Spirit International at [42] per Rares J and [150] per Buchanan J. Ultimately, the question is what is "just and convenient": see Reading at [9]. In case management terms, that equates to what is the most just, quick, inexpensive and efficient way of proceeding: see s 37M of the Federal Court of Australia Act 1976 (Cth) and Olbers at [8].