ANALYSIS
33 There is, in my view, a fundamental problem with the Tribunal's reasoning process which infects both the conclusion that Mr Newton meets the factor in cl 5(j) (right hip) in Instrument 82 of 2001 as well as its conclusion that he meets the factor in cl 5(k) (both knees).
34 Before dealing with this, I would observe that there is an important difference between both factors which should be borne in mind. The factor in cl 5(j) requires the lifting of loads of at least 35kg while weight bearing to a cumulative total of 168,000 kg within any ten year period. In other words, the cumulative total may be reached within a shorter period, say five years, but achieving it within a longer period, say 12 years, would not be sufficient. On the other hand, the factor in cl 5(k) requires kneeling or squatting for at least one hour each day on more days than not for at least two years, which is the minimum period over which it may be satisfied. I would read that requirement as requiring two contiguous years.
35 As a matter of construction, the periods referred to in the factors in cll 5(j) ('within any 10 year period') and (k) ('for at least two years') must encompass at least part of a period of relevant service for the requirement of cl 4 of Instrument No 82 of 2001 to be met; otherwise there is no relationship between the injury/disease and the relevant service. Moreover, that part of the period of relevant service must contribute to the requirements of each factor, in the case of the factor in cl 5(j) to the total weight lifted over the period not greater than 10 years and, in the case of the factor in cl 5(k), to the kneeling or squatting time requirement in one of the two years.
36 I think the Tribunal recognised the need for this relationship in its reasons at [56] and [57]. While the Tribunal's observations there are directed to the factor in cl 5(i) of Instrument No 32 of 2005, there are no substantive differences between the relevant terms of the factor in cl 5(i) of Instrument No 32 of 2005 and the same terms of the factor in cl 5(j) of Instrument No 82 of 2001.
37 If one were to take the last five years of Mr Newson's relevant service (1946) as being the starting point, the last year in which the requirements of the factor in cl 5(j) of Instrument No 82 of 2001 (and the factor in cl 5(i) of Instrument No 32 of 2005) could be met would be 1955 (at the end of 10 years); and the last year in which the requirements of the factor in cl 5(k) of Instrument No 82 of 2001 (and the factor in cl 5(l) of Instrument No 32 of 2005) could be met would be 1947 (at the end of two years).
38 Where the Tribunal's process of reasoning appears to have fallen into error is in its construction of the factors in cll 5(j) and (k) of Instrument No 82 of 2001 as to when the period of 25 years, within which clinical onset must occur, first starts. Under the current Statement of Principles in Instrument No 32 of 2005, it is clear that in the case of the factors in cll 5(i) and (l), the period of 25 years first starts immediately following the 10 year or lesser period and the two year period respectively. The Tribunal was of the view that the start date under the factors in cll 5(j) and (k) of the previous Statement of Principles in Instrument No 82 of 2001 did not occur until physical activity of the generic kind referred to in the factors, 'heavy lifting', in the case of cl 5(j), and 'kneeling and squatting', in the case of cl 5(k), actually ceases even if that cessation does does not occur until years after the expiration of the 10 year or lesser period in the case of the factor in cl 5(j) and the expiration of the two-year period in the case of the factor in cl 5(k). Hence, the Tribunal's finding, that Mr Newson's 'heavy lifting' only ceased in 1967 led it to the conclusion that the 25 year period within which clinical onset must occur in the case of the right hip only then commenced; and the finding that Mr Newson's 'kneeling and squatting' only ceased in 1989 led it to the conclusion that the 25 year period within which clinical onset must occur in the case of both knees only then commenced.
39 In my opinion, this process of reasoning is predicated on an erroneous construction of the references to 'such physical activity' in both cll 5(j) and (k) of Instrument No 82 of 2001. It is not a reference to physical activity of that generic kind such as 'heavy lifting or 'kneeling and squatting'; the reference is to 'such physical activity' and, so understood, is a reference back to the physical activity meeting the anterior terms of the factors in cll 5(j) and (k). As indicated in [35] above, this in turn requires the relevant periods therein referred to -'within any 10 year period' and 'for at least two years' - to encompass at least part of a period of relevant service so as to provide a relationship to meet the requirements of cl 4 that the factor must be related to any relevant service rendered by the person. Such physical activity ceases, at the latest, at the end of the 10 year period in the case of the factor in cl 5(j) of Instrument No 82 of 2001 and, in the case of the factor in cl 5(k) of that instrument, at the end of the two year period; in other words, in the case of the factor in cl 5(j) in 1955 and in the case of the factor in cl 5(k) in 1947.
40 So considered, there is no difference in result in the application of the factors in cll 5(j) and (k) of Instrument No 82 of 2001 from the result in the application of the factors in cll 5(i) and (l) of Instrument No 32 of 2005. In the facts of the present case, for Mr Newson to meet the factor in cl 5(j), clinical onset of osteoarthrosis of the right hip would have had to occur by 1980, and the Tribunal found that it only occurred in the mid 1980s; for Mr Newson to meet the factor in cl 5(k), clinical onset of osteoarthrosis of both knees would have had to occur by 1972, and the Tribunal found it only occurred in 1999.
41 The appeal must be allowed with costs.
I certify that the preceding forty-one (41) numbered paragraphs are a true copy of the Reasons for Judgment herein of the Honourable Justice Edmonds.