Decision
23 It is correct to say that the submissions for Ms Jopling do not assert any error of principle or misapprehension of fact. Thus, the challenge to the primary judge's quantification of non- economic loss must fail unless the outcome can be shown to be wholly erroneous: so unreasonable and plainly unjust that error in the exercise of the discretion must be inferred. A challenge on this basis faces an immediate obstacle. As McColl JA said in Franklins at para [52], "[t]he exercise a primary judge is required to undertake in determining the severity of a plaintiff's non-economic loss for the purposes of s 151G [of the Workers Compensation Act 1987] is neither scientific nor normative. While it is not wholly at large, it does, nevertheless, involve an exercise of discretion with which … the Court will rarely intervene." (As I have said in para [13] above, the principles stated by her Honour in relation to s 151G of the Workers Compensation Act are equally applicable to s 16 of the Civil Liability Act.)
24 Indeed, to say that a determination of non- economic loss involves more art than science might be to overstate the degree of logic and precision with which such an assessment is performed. A primary judge has the benefit of considering the whole of the evidence, and of observing the plaintiff in the witness box. A primary judge has the advantage of forming an assessment, not always or wholly based on objective and rational factors, of the plaintiff's credibility, and of assessing the veracity and accuracy of the plaintiff's complaints. As this Court recognised in Southgate v Waterford (1990) 21 NSWLR 427 at 442 "a point is reached where further reasoning is impossible. It is necessary to make a determination which is insusceptible to entirely logical expedition … . That determination rests up on the judge's findings [sic] and his or her reaction to those findings, drawing upon the judge's general experience. … [A] more "scientific" approach is forbidden by binding authority of the High Court and of this Court." (That case concerned s 79 of the Motor Accidents Act 1988; as with s 151G of the Workers Compensation Act, the principles are applicable to s 16 of the Civil Liability Act.)
25 Again, in Dell v Dalton (1991) 23 NSWLR 528, Handley JA (with whom Kirby P and Priestley JA agreed) said at 533 that the assessment of non- economic loss involves "questions of fact and degree, and matters of opinion, impression, speculation and estimation, calling for the exercise of commonsense and judgment."
26 It is apparent from the primary judge's findings that his Honour reviewed carefully the whole of the evidence bearing on the s 16 assessment. It does not appear that counsel for Ms Jopling sought to persuade his Honour that the evidence of Mr Isaac was exaggerated, or untrustworthy, or that it should not be accepted. It is plain that his Honour in substance accepted Mr Isaac as a witness of truth.
27 The medical evidence tendered in support of Mr Isaac's case was unchallenged. Indeed, it appeared that Ms Jopling had procured Mr Isaac to be examined by an orthopaedic specialist, who had prepared a report; but that specialist was not called at trial and, when counsel for Mr Isaac sought to tender his report, counsel for Ms Jopling objected and (entirely properly) the tender was rejected.
28 Mr Isaac gave evidence, which clearly the primary judge accepted, of the disabilities and limitations that were consequent upon his injuries. His surfing prowess was very severely diminished. He was no longer able to engage in snowboarding. He suffered pain in the right leg after standing for more than a short period of time; and if he were required to sit, he needed to extend and flex the leg. There was a significant limitation - about 10-15% - in the range of extension movement of the right leg.
29 Mr Isaac was a young man when the accident occurred. IClearly, it has had a significant impact on his quality of life. That Clearly, those impacts will continue (and, with the diagnosis of osteoarthritis, worsen) over the years.
30 Those circumstances, and the rest of the evidence considered (and obviously accepted) by the primary judge, support his Honour's assessment. Indeed, I think, it can be said that his Honour took a conservative approach towards the assessment.
31 In those circumstances, bearing in mind the evidence given by Mr Isaac that entirely supported, and fleshed out in terms of their real world impact, the complaints of disability given to Dr Conrad and Dr Gibson, I do not think that his Honour's assessment of non- economic loss has been shown to be erroneous to the point where, having regard to the principles that I have stated, this Court should intervene.
32 In passing, I repeat that Mr Campbell's submission was that the primary judge should have made a s 16 assessment of 25% of a most extreme case. In my view, it is impossible to say that a variation between 28% and 25% is so extreme as, absent demonstration of some specific vitiating factor, to demonstrate error in the exercise of the discretion. True it is that the impact of the variation is substantial (because of the operation of the table to s 16). But the question of erroneous exercise of discretion falls to be considered at the level of the "first" step set out in the note to s 16, which is determination of "the severity of the claimant's non-economic loss as a proportion of a most extreme case". That is where the exercise of discretion arises. The arithmetic result of the exercise is prescribed by the table.