Should Mr Stradford be denied costs associated with Ms Bossert's evidence?
25 The issue concerning the costs associated with Ms Bossert's evidence is a little more difficult.
26 While I accept that it was not unreasonable at all for Mr Stradford to call expert evidence in support of his claim for economic loss, Mr Stradford ultimately abandoned any reliance on Ms Bossert's report and evidence. As events transpired, that turned out to be a sensible and reasonable forensic decision because I would, in any event, have wholly rejected that report: see J at [764]. As I have already made clear, the main reason Mr Stradford was effectively driven to abandon any reliance on Ms Bossert's evidence was that the instructions and assumptions given provided to Ms Bossert were inaccurate and did not reflect the reality of Mr Stradford's position. The fault in that regard lay almost entirely at the feet of Mr Stradford. He no doubt provided certain information and instructions to his lawyers. That information and those instructions no doubt provided the basis for the assumptions that Ms Bossert was asked to make for the purpose of providing her expert report. The instructions and information that Mr Stradford provided concerning his earnings before his injury turned out to be incomplete, inaccurate and unreliable. The same can be said concerning the information and instructions concerning the income he earned following his injury and up to the commencement of the trial.
27 Does that circumstance justify a costs order which carves-out all costs associated with Ms Bossert's evidence?
28 Mr Stradford submitted that it did not. He emphasised that he had succeeded on all issues at trial, including in respect of damages. He was awarded damages in respect of each of the heads of damage that he claimed, including damages for economic loss. The fact that he was ultimately awarded a lower figure for economic loss than he had claimed because Ms Bossert's evidence was not accepted was, he submitted, of no great moment. While Mr Stradford implicitly accepted that courts can, and do occasionally, make costs orders in favour of the successful party which carve-out the costs in respect of issues on which that party was wholly unsuccessful, this was not, in his submission, a case where it could be said that he wholly failed in respect of any issue.
29 Mr Stradford pointed out that it is not uncommon for plaintiffs to receive an award of damages less, often significantly less, than the award sought by them. It was also not uncommon for the evidence of expert witnesses in respect of damages to be rejected, in whole or part, because the assumptions underlying their evidence were not made out at trial. In his submission, neither circumstance justified a costs order which excised the costs associated with the expert evidence concerning damages.
30 Mr Stradford also emphasised that at no point prior to the trial did the respondents make any attempt to bring to his attention the flaws in Ms Bossert's instructions and assumptions. Instead, they made the forensic decision to reserve those points for exposure during the trial.
31 Mr Stradford ultimately submitted that the real issue was whether any act or omission by him in respect of the conduct of the trial was such as to disentitle him to the costs associated with the evidence of Ms Bossert. I agree. I also agree that it is somewhat unusual for a party to be deprived of the costs associated with the evidence of a witness, including an expert witness, simply because their evidence was ultimately not accepted, or wholly accepted, once tested at trial. It would be equally unusual for a party to be deprived of their costs associated with a witness on the basis that the witness's evidence ultimately did not have any real bearing on the conclusions ultimately reached by the Court. As Bromwich J said in Australian Competition and Consumer Commission v GlaxoSmithKline Consumer Healthcare Australia Pty Ltd (No 2) [2020] FCA 724 at [74], the problem with that approach to costs is that:
…except in the clearest of cases it is at best difficult, and at worst impossible, to divine precisely what subtle contribution particular evidence may have had to the conclusions reached, especially without resort to hindsight reasoning.
32 This case, however, was and is unique and unusual in many respects, including in relation to the evidence concerning the loss and damage suffered by Mr Stradford as a result of his false imprisonment. As I have already said, the fundamental problem for Mr Stradford in respect of Ms Bossert's evidence and his claims for economic loss generally was that the instructions and information he gave to Ms Bossert were incomplete, inaccurate, and unreliable. Even when the unreliability of some of Ms Bossert's instructions and assumptions was exposed, to a certain extent, prior to the trial, that simply prompted Mr Stradford to instruct Ms Bossert to provide a supplementary report based on further assumptions. The assumptions which underlay the supplementary report turned out to be almost as unreliable as those that informed Ms Bossert's original report. As indicated earlier, Ms Bossert's unfailing and unquestioning acceptance of what turned out to be fairly dubious and unreliable instructions did not reflect well on her or her reliability as an independent expert witness. To make matters worse, Mr Stradford's own evidence concerning the information and assumptions which had been provided to Ms Bossert, including his pre-injury and post-injury earnings, was also found to be unreliable and to lack credibility.
33 The inaccuracy and unreliability of the instructions and assumptions provided to Ms Bossert and Mr Stradford's evidence relating thereto is emphasised in numerous places in my judgment: see J [565], [570], [572], [761], [763], [764] and [796] to [808].
34 I have ultimately concluded that Mr Stradford's conduct in providing what turned out to be incomplete, inaccurate and unreliable instructions to Ms Bossert was sufficiently unreasonable to disentitle him to the costs in respect of the preparation of Ms Bossert's reports and her attendance at court. I do not consider that it would be just and equitable to require the respondents to pay the costs of Ms Bossert's reports and her attendance at court in all the circumstances.
35 This is not a case where the opinions of an expert witness called by the losing party in respect of damages were simply preferred to the opinions of the expert witness called by the successful party. Nor is it a case where the opinions of an expert witness called by the successful party in respect of damages were discounted or given less weight because the evidence adduced at trial did not support, or wholly support, the assumptions given to the expert. Rather, this was a case where the expert's evidence was abandoned, and would in any event have been wholly rejected, because the party responsible for retaining and calling the expert provided the expert with wholly incorrect and unreliable information and assumptions. As Queensland submitted, the abandonment of an expert report during the trial, or in final submissions, is really no different to obtaining an expert report but not tendering it at trial. A party could scarcely expect to be entitled to obtain the costs associated with an expert report which was never relied on or tendered at trial. It is also not entirely unusual for a costs order in favour of a successful party to excise costs associated with an affidavit which was not read at trial. GlaxoSmithKline was such a case.
36 In my view, however, it would not be appropriate or reasonable to deprive Mr Stradford of all of the costs associated with Ms Bossert's evidence. That was the effect of the order sought by the respondents. Disentangling the costs associated with Ms Bossert's evidence from the costs associated with Mr Stradford's damages case generally would inevitably turn out to be a complex, difficult and time-consuming exercise. That exercise would also not be warranted in the circumstances of this case. I do not consider that Mr Stradford's conduct was sufficiently unreasonable to disentitle him to all the costs associated with Ms Bossert's evidence. In my view, the excision or carve out from the costs order should be limited to the amount paid to Ms Bossert for the preparation of her expert reports and her attendance at court to give evidence. I propose to make an order in those terms.