legislative framework
5 Pursuant to s 13 of the VE Act, the Commonwealth is liable to pay a pension by way of compensation to a veteran who has become incapacitated from a war-caused disease: see s 13(1). The concept of war-caused disease is the subject of s 9. In particular, s 9(1)(e)(i) provides that a disease contracted by a veteran shall be taken to be a war-caused disease if the disease was contracted while the veteran was rendering eligible war service and the disease was contributed to in a material degree by, or was aggravated by, any eligible war service rendered by the veteran after contracting the disease.
6 Section 120 provides for the standard of proof to be applied in determining a claim for a pension and, in particular, s 120(4) governs the case of a veteran who, like Mr Wedekind, did not render operational service. Pursuant to s 120(4), the AAT was required to decide whether Mr Wedekind's pterygium was war-caused "to its reasonable satisfaction", applying the civil standard of proof: see Repatriation Commission v Smith (1987) 15 FCR 327 at 335. The effect of s 120(6) is that neither the Commission nor Mr Wedekind bore any onus of proving any matter that is, or might be, relevant to the determination of the claim. In this connection, it is as well to bear in mind s 119 and, in particular, s 119(1)(h) which requires account to be taken of:
any difficulties that, for any reason, lie in the way of ascertaining the existence of any fact, matter, cause or circumstance, including any reason attributable to: (i) the effects of the passage of time, including the effect of the passage of time on the availability of witnesses; and (ii) the absence of, or a deficiency in, relevant official records, including an absence or deficiency resulting from the fact that an occurrence that happened during the service of a veteran … was not reported to the appropriate authorities.
Because Mr Wedekind's claim was lodged after 1 June 1994 (i.e., on 16 July 1996), s 120B(3) of the VE Act applies. By virtue of s 120B(3), the AAT could be reasonably satisfied the pterygium contracted by Mr Wedekind was war-caused only if: (a) the material before the AAT raised a connection between the pterygium and the war service rendered by Mr Wedekind; and (b) there was in force a Statement of Principles ("SoP") under s 196B(3) upholding the contention that the pterygium was, on the balance of probabilities, connected with that service. (As counsel for the Commission pointed out, the last three lines of s 120B(3) can rationally relate only to par (b), not par (a).)
7 SoPs are made by the Repatriation Medical Authority ("the Authority") under s 196B of the VE Act in respect of, relevantly, particular kinds of disease. Where a SoP is made under s 196B(3), it must set out the factors that must exist, and which of those factors must be related to service, before it can be said, on the balance of probabilities, that a disease of a particular kind is connected with the circumstances of the service. Subsection 196B(3) provides as follows:
If the Authority is of the view that on the sound medical-scientific evidence available it is more probable than not that a particular kind of injury, disease or death can be related to:
(a) eligible war service (other than operational service) rendered by veterans; or
(b) defence service (other than hazardous service) rendered by members of the Forces;
the Authority must determine a Statement of Principles in respect of that kind of injury, disease or death setting out:
(c) the factors that must exist; and
(d) which of those factors must be related to service rendered by a person;
before it can be said that, on the balance of probabilities, an injury, disease or death of that kind is connected with the circumstances of that service.
The expression "related to service" is elaborated in s 196B(14). In substance, the subsection replicates the causal relationships found in ss 8(1) and 9(1) of the VE Act.
8 In Repatriation Commission v Deledio (1998) 83 FCR 82 at 95-96, the Full Court of this Court expressly agreed with Heerey J, the primary judge in that case, that:
[I]t is necessary to repeat that the SoP has no function in relation to the proof or disproof (under s 120(1)) of the particular facts of a veteran's case. The SoPs function is limited to prescribing a medical-scientific standard with which a hypothesis must be consistent - so that the SoP can 'uphold' the hypothesis. … the SoP is a subset of proved (Bushell [v Repatriation Commission (1992) 175 CLR 408] at 414) or known (Byrnes [v Repatriation Commission (1993) 177 CLR 564] at 571) scientific fact. Where a SoP is applicable, it is a statute-backed declaration of what is proved or known scientific fact.
See Deledio v Repatriation Commission (1997) 25 AAR 396 at 411-412. The Full Court went on, at 96, to agree further with his Honour's observations in the following passage at 25 AAR 412:
Therefore when s 196B(2) says a factor 'must … exist' and 'must be related to service', it is not interfering with the functions of s 120(1) and (3). On the contrary, the [Authority] is to identify the minimum factors which can connect the particular kind of injury etc with the circumstances of the particular kind of service (operational etc). If there is more than one factor the [Authority] is to determine which of them (or whether all of them) must be related to the circumstances of the service (see above). The particular claim then has to fit the template laid down in the SoP. The Byrnes methodology is applied. Do the facts raised by the claimant give rise to a reasonable hypothesis? Proof of facts is not in issue at this point. The hypothesis will not be reasonable if it is:
(1) contrary to proved or known scientific facts,
(2) obviously fanciful, impossible, incredible, absurd, ridiculous, not tenable, too remote or too tenuous; or
(3) (since 1994) inconsistent with (not upheld by) an applicable SoP.
If the hypothesis is reasonable the claim will succeed unless:
(4) one or more facts necessary to support it are disproved beyond reasonable doubt; or
(5) the truth of a fact inconsistent with the hypothesis is proved beyond reasonable doubt.
At no stage is there an onus of proof on the claimant. If one of the disputed facts happens also to be a component of an SoP then the Commission must disprove that fact beyond reasonable doubt, just like any other relevant fact.
In other words, where a claim relates to eligible (non-operational) war service, a relevant SoP provides for the connection that must be established between the disease relied upon and war service, to the reasonable satisfaction of the decision-maker.
9 The Authority made a Statement of Principles concerning pterygium on 21 June 1995. Clause 1 states that "the factor that must exist before it can be said that, on the balance of probabilities, pterygium or death from pterygium is connected with the circumstances of … service, is: (a) inability to obtain appropriate clinical management for the pterygium".
10 Clauses 2 and 3 of that SoP are as follows:
2. Subject to clause 3 (below) the factor set out in paragraph 1(a) must be related to any service rendered by a person.
3. The factor set out in paragraph 1(a) applies only where:
(a) the person's pterygium developed before a period, or part of a period, of service to which the factor is related; and
(b) the relationship suggested between the pterygium and the particular service of a person is a relationship set out in paragraph 8(1)(e), 9(1)(e) or 70(5)(d) of the Act.
By virtue of s 120B(3), Mr Wedekind's claim for a pension in respect of his pterygium would fail if this SoP did not uphold the contention that his pterygium was, on the balance of probabilities, connected with his eligible war service: see Brew v Repatriation Commission [1999] FCA 1246 at [18] per Merkel J (with whom Mansfield J agreed).
11 The SoP does, however, limit the occasions when a claimant can successful rely on the inability to obtain appropriate clinical management factor. As we have seen, cl 2 requires that, subject to cl 3, the factor be "related to any service" rendered by, in this case, Mr Wedekind. (The nature of the relevant relationship is described in s 196B(14) of the VE Act.) In other words, there must be something in the nature of a causal relationship between the inability factor and war service. The effect of cl 3 of the SoP is that the inability factor "applies" only where the disease (here, the pterygium) "developed before a period, or part of a period, of service to which the factor is related" (cl 3(a)), and where the relationship between the pterygium and Mr Wedekind's particular service is a relationship set out, relevantly, in s 9(1)(e) of the VE Act. For the reasons set out below, in the circumstances of Mr Wedekind's case, the only relationship that could exist is that described in s 9(1)(e)(i). He was required to show that his pterygium was contracted while he was rendering non-operational eligible war service and that it was contributed to in a material degree by, or was aggravated by, that service. (I discuss below Mr Wedekind's contention that s 9(1)(e)(ii) was also available to him.)
12 In summary, before the AAT could be reasonably satisfied that Mr Wedekind's pterygium was war-caused, it had to be satisfied that: (a) Mr Wedekind was unable to obtain appropriate clinical management for his pterygium during his war service, after having contracted the pterygium; (b) subject to (c), his inability to obtain appropriate clinical management was related to his war service; and (c) the pterygium was contracted while he was rendering war service and was contributed to in a material degree by, or was aggravated by, his war service. In the course of determining whether it was satisfied of these matters, the Tribunal needed to identify the approximate date upon which Mr Wedekind contracted his pterygium; the appropriate form of clinical management; whether Mr Wedekind was unable to obtain that form of clinical management; whether that inability related to his service; whether the pterygium was contracted during his service; and whether it was contributed to in a material degree by, or was aggravated by, Mr Wedekind's particular service.