16 So important is the anti-surprise function of particulars that, as Bailey shows, a party can even be ordered in an appropriate case to give particulars of an allegation in respect of which it does not bear the burden of proof.
17 Statutory provisions reversing the persuasive burden of proving issues can have a profound impact on the course of evidence at the trial and thus what needs to be done by the parties in order to prepare for the trial. It is common to find in statutes creating criminal offences provisions that cast onto the defence the burden of proving a matter which would, in the absence of the provision, fall on the prosecution. There is authority to the effect that where the prosecution so conducts its case as to indicate to the defence that it intends to voluntarily assume the burden of proving a matter the subject of a statutory reversal of the onus of proof, it may be disentitled later on from changing position to invoke the statutory provision. See, eg, The King v Nat Bell Liquors Ltd [1922] 2 AC 128 at 140; Cato v Costello; Ex parte Costello [1939] St R Qd 318 at 322 - 323 and R v O'Brien (1964) 50 DLR (2nd) 92 at 94. As appears from the two lastmentioned decisions, the foundation for this rule is to ensure that the defendant will not be taken by surprise in conducting his case, ie, the same objective intended to be served by particulars in civil cases.
18 This case shows how an allegation like that relied on by the Commission, if read at face value, can mislead a respondent in the preparation and presentation of its case.
19 In my opinion, even if it be the position that an applicant is not required by O 11 r 2 to plead reliance on s 51A, as was suggested in Cummings v Lewis, that does not free it of the obligation to indicate, by way of particulars given in accordance with O 12 r 1, its intention to rely on that provision. Notwithstanding what was said in Cummings v Lewis, a number of judges of this Court have been of the opinion that where a party wishes to rely upon s 51A, it must give a clear indication of that to its opponent. See Bond Corporation per French J, Phoenix Court v Melbourne Central Pty Ltd (unreported, 22 October 1997) per Goldberg J and Truth About Motorways Pty Ltd v Macquarie Infrastructure Investment Management Ltd (1998) ATPR 41-633 per Foster J. I agree with this approach.
20 The next question is whether the Commission in pars 20 and 35 of its consolidated pleading sufficiently alerted the respondents of its intention to rely upon this section. While I agree with French J, in the Bond Corporation case, that a party who invokes s 51A should make it clear to the other party that it is doing so, I respectfully disagree that the duty of the applicant to make clear that it invokes s 51A is discharged "if it pleads that the respondent did not have reasonable grounds for making the representation and that it was thereby misleading or deceptive". In my opinion, while an experienced lawyer might read more into it, that in terms does nothing more than invoke sub-section (1) of the section, which is declaratory of the common law and which, if alone relied on, leaves the burden of proof of the absence of reasonable grounds on the applicant who alleges it. See Ting v Blanche at 552 and Phipson on Evidence, 14th ed, par 4-05, particularly at note 28. It is true, as Goldberg J observed in Phoenix Court, that, by force of O 11 r 5, a party need not plead a fact if the burden of disproving the fact lies on the other party. But, as a matter of construction, s 51A cannot, in my opinion, be read as establishing that the only way of showing a predictive representation is not misleading is for the representor to prove that it had reasonable grounds for the prediction: a representee can, if it chooses, accept the full burden of proving the absence of reasonable grounds for such a representation. It will, in my opinion, do that if it pleads no more than that representation as to a future matter was made without reasonable grounds and was therefore misleading.
21 It is s 51A(2) which must be invoked if an applicant wishes to reverse the burden of proof. However, I agree with French J that this can be sufficiently done by an express reference to reliance upon s 51A. As his Honour observes, this approach is probably logically more consistent with the structure of the section.
22 An applicant who properly invokes s 51A can, if it chooses, rely only on that provision in support of a case that representations as to future matters are misleading. But such a party must also be free, if it wishes, to adduce evidence as to the absence of reasonable grounds for such representations: it must be able, whether in anticipation or by way of rebuttal of evidence adduced by the respondent in such a case as to the reasonableness of its predictions, to show, by evidence of its own, that the respondent's material should not be accepted as probative of the issue. But, for the reasons given, there is no reason why an applicant should not be entitled to present a case based on representations as to future matters which it is content to prove in reliance on evidence assembled by it and without relying at all on s 51A. It may then be open to the respondent, as I think it is here, to say that the applicant has shown an intention to confine its case to the evidence it has relied on to date in relation to the reasonableness of the future matters. In such a case, if an applicant at a late stage of the trial then decides to bolster its case by calling in aid s 51A, it may properly be denied an entitlement to do that, if the respondent can legitimately say that it was mislead, to its prejudice, into thinking that the applicant did not intend to rely on s 51A, that it was therefore unnecessary for the respondent to assemble full proof of its own as to the reasonableness of its future representations, but could confine itself to destroying the positive evidence relied on by the applicant to establish that issue.
23 I will therefore give the Commission leave to deliver the proposed amended statement of claim produced in Court on 10 March last, save that the Commission will not have leave to include in that pleading the particular in par 30: "The applicant relies upon s 51A of the Act".
I certify that the preceding twenty-three (23) numbered paragraphs are a true copy of the Reasons for Judgment herein of the Honourable Justice Drummond.