DISPOSITION OF THE APPEAL
30 The primary judge referred to evidence of Dr Hession stating that the Veteran "has arthritis in both knees but the degree of arthritis is not such as to prevent employment, although excessive lifting or very strenuous physical activity or weight bearing should be restricted". Dr Hession then went on to say:
"I do not consider he is fit for cellarman duties because of the arthritis in his knees but light storeman duties should be within his capacity, even though he is not experienced in such work."
31 His Honour then referred to the Veteran's evidence that his knees "had not caused him any problems in performing his last job and that since his knee was operated on in 1997, he had not suffered any further impairment".
32 After referring to the Tribunal's findings concerning the evidence of Dr Hession, the primary judge observed that "the great preponderance of the evidence, including Dr Hession's, was that all but the heaviest types of work are within the [Veteran's] physical capabilities". His Honour was of the view that the Tribunal's decision did not evince a proper, genuine and realistic consideration of the medical evidence. His Honour considered that if Dr Hession's views as to the Veteran's physical capabilities were to be rejected, one would expect some explanation as to why that would be so. His Honour was left with the "strong impression" that the Tribunal misunderstood or confused the medical evidence, or alternatively failed to give reasons, or adequate reasons, explaining the process by which it reached its decision.
33 While it may be an error of law for an administrative decision-maker to fail to give proper, genuine and realistic consideration to the question before it, reaching an erroneous conclusion after a genuine consideration of the evidence is not an error of law.
34 Since the Tribunal formulated the question in the terms set out above, there is no reason to conclude that the Tribunal was not mindful of that formulation when making its finding that the Veteran's arthritic knee condition was not a reason for his incapacity to undertake remunerative employment. That is to say, the Tribunal's finding should be read as a conclusion that, even without that condition, the Veteran would be incapable of undertaking remunerative work for periods aggregating more than eight hours per week. Such a finding is not exceptionable in terms of s 24(1)(b). In the light of that finding, the Tribunal correctly considered the second question, namely, the application to the Veteran of s 24(1)(c).
35 On a fair reading of the reasons of the Tribunal, the Tribunal did not treat labour market forces as preventing the Veteran from obtaining work simply by reason of his post-traumatic stress disorder or absence from the workforce by reason of that condition. While the evidence concerning the condition of the Veteran's knee could easily have supported a different conclusion, the Tribunal's conclusion was open to it.
36 The Tribunal's task was to assess what the Veteran probably would have done, if he had none of his service disabilities during the assessment period. The requirement to consider "remunerative work that the veteran was undertaking" does not mean a particular job with a particular employer but the substantive remunerative work that the Veteran had undertaken in the past. That is the exercise that the Tribunal undertook. The Tribunal was not bound to limit its consideration to the last employment that the Veteran actually undertook.
37 The consideration of what a veteran would probably have done, absent the service disabilities, is a hypothetical exercise. The language of s 24(1)(c) of the Act directs attention to the question of whether incapacity from the relevant condition alone prevents a veteran from continuing to undertake remunerative work. The provision does not contemplate that other factors are only to be taken into account if they, of themselves, prevent the Veteran from working. The decision-maker is required to take into account any factor that plays a part or contributes to a veteran's being prevented from continuing to engage in remunerative work. If a period of time elapses after a veteran ceases remunerative work and before the commencement of the assessment period, lack of recent work experience, time out of the workforce and increasing age will be relevant for consideration under s 24(1)(c) of the Act. The decision-maker is required to consider the effect, contribution to, and relative weight to be attached to any or all of those factors during the assessment period. So long as the Tribunal performs this exercise, the conclusions drawn from the assignment of the relative impact the various factors on the ability of the veteran to continue in remunerative work is not reviewable, except in exceptional circumstances. Moreover, having considered any or all of the factors which may have contributed to a veteran's incapacity, the Tribunal is then required to determine whether it is the veteran's war-caused injury or war-caused disease, or both, alone which prevent the veteran from continuing to undertake remunerative work. Error on the part of the Tribunal is determining whether the veteran's war-caused injury or war-caused disease is the sole determinant in the prevention of continued remunerative work is, similarly, not open to review.
38 The Tribunal formulated the issues that arise under s 24(1)(c) of the Act. The Tribunal was not bound to have regard only to the work that the Veteran was performing with "Materials in the Raw". However, it had regard to the Veteran's work with that employer. The Tribunal made a finding of fact concerning the question of whether the Veteran was prevented from continuing to undertake remunerative work that he had been undertaking by reason of incapacity from war-caused conditions alone. As stated earlier, this is no error of law; rather it was merely an outcome of the decision-making process which it was bound to undertake.
39 Finally, with regard to his Honour's alternative finding that the Tribunal failed to give adequate reasons for reaching the conclusions it did, s 43(2B) of the AAT Act requires that, where the Tribunal gives in writing the reasons for its decision, those reasons shall include its findings on material questions of fact and a reference to the evidence or other material on which those findings were based. However, this is not a requirement that the reasons provide an unarguable logical progression to a conclusion. It will, in almost every case, be that alternative conclusions are possible based on the evidence and other material to which reasons refer. The fact that the Tribunal may come to a conclusion contrary to that which the Court or a Tribunal differently constituted might come is not a reviewable error, so long as the reasons include the factors set out in s 43(2B) of the AAT Act.