11 In addition to her affidavit the applicant also relied on the following two affidavits: (1) the affidavit of Mark Stewart Graham affirmed on 24 August 2009 to which were annexed two reports dated 31 July 2009 and 15 August 2009; and (2) the affidavit of Stephen John Ambrose affirmed on 24 August 2009 to which was annexed a letter of advice addressed to Mr Oshlack and a "supplementary statement of evidence" dated 23 August 2009.
12 The first difficulty facing the applicant in relation to her expert evidence was whether any part of it was admissible as expert opinion in accordance with s 79 of the Evidence Act 1995 (Cth). Section 79 provides an exception to the opinion evidence rule in the case of evidence of an opinion that is "wholly or substantially" based on a person's specialist knowledge that, in turn, is "based on the person's training, study and experience". All elements of s 79 must be satisfied. Accordingly it must be shown that the opinion is relevant; that the person expressing the opinion has specialised knowledge in the relevant field; that the person's specialised knowledge is based on the person's training, study or experience; and that the particular opinion is based (wholly or substantially) on the specialised knowledge; see Harrington-Smith on behalf of the Wongatha People v State of Western Australia (No 7) (2003) 130 FCR 424 at [17] per Lindgren J.
13 As the respondent submitted it is not sufficient for an opinion merely to fall within the field in which the expert has specialised knowledge if the opinion is not based on that specialised knowledge. The reports of Mr Graham and Dr Ambrose do not meet these criteria. I accept the following points made in the written submissions of the respondent:
[T]he opinions in the Graham and Ambrose reports are largely expressed as unsourced assertions and generalisations which rarely indicate the reasoning process which underlies them or the source of statements and information upon which they have relied. Further, they repeatedly fail to differentiate between matter of fact and opinion. With respect to the latter, rarely are phrases such as "in my opinion" or "in my view" used so as to signal the expression of an opinion.
…
The authors' opinions are expressed at the highest level of generality. For example, no attempt is made to locate geographically with any precision any of the species dealt with, nor to juxtapose those locations with the area in which the rally will be held. The Court is being asked to accept their "opinion" that certain consequences must flow because an undefined rally course passes in some unstated way through or near an undefined area of unstated size and unquantified habitation.
Supposed risks to species are introduced but no attempt is made to quantify them. No attempt is made to distinguish between posited scenarios as being certain, likely, possible, rare or fanciful. No attempt has been made to look at other, similar rally events either in Australia or overseas to determine what might actually occur during the proposed rally. …
Even more fundamentally, the authors' conclusions are invariably not supported by a course of reasoning. One must either accept ontological conclusions or read into the reports unstated facts and premises to support the conclusion stated.
14 The criticisms continued at some length, however the above is sufficient to convey the gist of the respondent's submissions. Because of both parties' urgent need for a decision I decided to admit the reports on a limited basis, namely for the purposes only of the interlocutory application and on the basis that they were not to be used for a hearsay purpose. Ultimately the question was what weight could be given to the assertions made in the reports when the assertions were not admitted as evidence of their truth but only as to the fact that the deponents had made them. In the circumstances little if any assistance could be gleaned from the expert reports.
15 The respondent relied on affidavit evidence of Garry Connelly, a director of the respondent and of Peter K Briggs, the solicitor for the respondent. Mr Briggs deposed to the difficulties that the respondent encountered in responding to the applicant's claims. The originating application was served shortly after 5 pm on 24 August 2009. That gave the respondent little more than two days in which to retain and commission an expert to respond to the reports of Dr Ambrose and Mr Graham. Mr Briggs outlined the attempts that were made - all of which were unsuccessful. The experts he contacted were simply unable to prepare a response in the time available.
16 Both Mr Briggs and Mr Connelly deposed to the prejudice that the respondent would suffer if an injunction were to be granted on such short notice and so close to the commencement of the rally. The prejudice would not be confined to the respondent but would extend to many others who are involved in the rally including international teams, ticket holders, including those who have purchased flights and accommodation to attend the rally, and those who have been granted commercial rights.
17 I accept this evidence. The applicant, on her own admission, has known about the proposed rally since September 2008. No satisfactory excuse or explanation was given for the delay in bringing the present application. It would be most unjust at this late stage to interfere with plans and arrangements that have been in train for such a long time without very clear evidence of illegality. No such evidence is before me. If it had been necessary to consider balance of convenience I should have been inclined to say that it lay with the respondent for the reasons I have given.
18 In the event, it was not necessary to consider balance of convenience. In my view the applicant's case was ill-considered and misconceived. As my comments on the applicant's evidence show the applicant came nowhere near establishing a prima facie case. Ultimately there was no admissible evidence to support the applicant's claim. Indeed at the hearing it was not necessary for me to call on counsel for the respondent to make oral submissions. There was simply no case to answer.
19 At the hearing I allowed the parties additional time to make written submissions as to costs. The applicant submitted that costs should be costs in the cause. She also submitted that the proceeding could be characterised as public interest litigation presumably in support of a claim that there should be no order as to costs. It is not clear to me what remains of the substantive application now that the rally has been held. In any event while I accept that it may often be appropriate to order that the costs of interim applications be costs in the cause or be reserved, this is not such a case.
20 In my view the respondent should not have been put in the position of having to respond to a case with so little merit and at such a late stage. Whatever the outcome of the proceeding from this point the respondent should have its costs of defending the interlocutory application. Those costs should be as agreed or taxed and should be payable forthwith.
I certify that the preceding twenty (20) numbered paragraphs are a true copy of the Reasons for Judgment herein of the Honourable Justice Stone.