20 The Tribunal accepted that those incidents fitted the AA SoP hypothesis, as they were capable of falling within the definition of "experiencing a severe stressor". It also accepted that clinical evidence of the onset of alcohol abuse appeared within two years of Mr Fenner's operational service in Vietnam.
21 It then asked, as it was required to do by the fourth Deledio step, whether it was satisfied beyond reasonable doubt that Mr Fenner did not in fact experience a severe stressor within that two year period, and so would be satisfied beyond reasonable doubt that Mr Fenner's condition of alcohol abuse did not arise from a war caused injury.
22 That, as the Tribunal addressed the matter, required its consideration of Mr Fenner's reliability as a witness.
23 It concluded, to its reasonable satisfaction (see s 120(4) of the Act) that Mr Fenner suffers from the condition known as antisocial personality disorder. It noted that deceit and manipulation are "central features" of that disorder, so there was a heightened need to consider the history provided by Mr Fenner by reference, where possible, to collateral sources.
24 That observation was particularly significant to the AAT's consideration of the claim by Mr Fenner that he suffered PTSD, because the medical definition of PTSD used by the Tribunal required exposure to a traumatic event in terms almost the same as the definition of "experiencing a severe stressor" in the AA SoP, save that it required the person's response to the relevant events to have "involved intense fear, helplessness, or horror" whereas the AA SoP required that the events "might invoke" those feelings. In other words, the medical definition of PTSD drew attention to the actual response of the person to the stressful events, whereas the AA SoP drew attention to the character of the events themselves.
25 The AAT said that there was a "real controversy as to whether Mr Fenner was exposed to a traumatic event that answered that description and as to whether he had that response." Hence, the AAT reasoned that it:
must be reasonably satisfied that the traumatic events that Mr Fenner claims caused his post traumatic stress disorder did, in fact, occur before we can reach a conclusion that Mr Fenner suffers from post traumatic stress disorder.
26 After discussing the evidence of the three psychiatrists who addressed the diagnosis, the Tribunal accepted as preferable the one medical opinion which said Mr Fenner did not suffer from PTSD. It gave reasons for that conclusion. The first reason was that the psychiatrist whose evidence was preferred had access to a greater range of information, including contemporary information, than the other psychiatrists. It noted that Mr Fenner had not remarked upon the claimed traumatic experiences to any of the psychologists, the psychiatrist, the social work student or the parole officer he had seen in 1970 and 1971. The second reason followed from the first. The further range of information enabled the psychiatrist whose evidence was preferred to more critically analyse Mr Fenner's account; an illustration was Mr Fenner's claim (which that psychiatrist, and the AAT rejected) that he sought a discharge from HMAS Sydney after his first trip to Vietnam. Thirdly, the AAT shared the concern of that psychiatrist about the veracity of Mr Fenner's account of those traumatic events.
27 On the last matter, the AAT concluded:
For reasons that we will set out more fully we do not accept the evidence that Mr Fenner has given on this aspect of the matter. We are not satisfied, on the balance of probabilities, that the traumatic events claimed by Mr Fenner involved a threat of death or serious injury nor are we satisfied that Mr Fenner had a response that involved intense fear, helplessness or horror. Our reasons for reaching that conclusion are set out below when we discuss the fourth Deledio step in the context of alcohol abuse.
Hence, it was not satisfied that Mr Fenner suffered from post traumatic stress disorder.
28 In addressing the fourth Deledio step in relation to the claim based upon the condition of alcohol abuse, the AAT first remarked upon Mr Fenner's credibility. It said that Mr Fenner was a "most unsatisfactory witness." It reached that view based on contemporary materials, objectively established facts and the apparent "logic of events", and not on "any particular perception of his demeanour". The factors particularly relied upon were as follows:
(1) that his anti-social personality disorder has deceit and manipulation as central features;
(2) that there is no record of Mr Fenner having reported the scare charges or the full steam ahead incident during 1970 and 1971 when he was (apparently) seen by psychiatrists, psychologists, a social work student, and by parole officers, nor is any reference made in the papers in connection with his discharge;
(3) that Mr Fenner falsely claimed to a Dr Kenny in August 2005 that he requested a discharge from the Navy on return from his first visit to Vietnam in April 1967, whereas when he applied for a discharge in March 1969 he is recorded as saying that he had not previously applied for discharge; and
(4) that there are "numerous variations and inconsistencies" in the accounts (apparently) given by him from time to time, and the "sheer illogicality of much of what he says."
29 The Tribunal went on to explain that last observation by reference to the claimed traumatic events.
30 It accepted that scare charges were used by HMAS Sydney in Vietnam, and sometimes detonated closer to the vessel than they should have been, causing more noise and shock than expected. However, it said that "[w]hat is in issue is Mr Fenner's claimed response to them."
31 The AAT referred in a little detail to Mr Fenner's reports of the scare charges. He told one doctor in July 2001 that when he first heard them, he was in the engine room and he did not know what they were and that he was significantly alarmed because he feared the ship may be under attack. To the Veterans' Review Board, Mr Fenner described particularly his fear during the Tet Offensive. To the AAT, Mr Fenner described one particularly loud scare charge which nearly forced him to fall, when he thought the ship's hull had been hit and he feared drowning in the boiler room; he later said this happened on the trip that probably coincided with the Tet Offensive (his fifth trip to Vietnam).
32 The AAT regarded it as "inconceivable" that Mr Fenner could not recall if he then asked if the ship had been under attack, and concluded that "his professed lack of recall is feigned" because he would have been told that the incident involved a scare charge. It said that the first few occasions of hearing scare charges may have been frightening, but that the explosions would not continue to produce fear after some experience of them. It noted that his evidence "waxed and waned" on whether the worst scare charge incident happened on the February 1968 trip which coincided with the Tet Offensive. It said his evidence of his reaction to the scare charges was "quite unconvincing", ranging from being "significantly alarmed", to fear of his life, to having the hell scared out of him.
33 It must be said that at least three of those observations of the AAT are not logical. To know that scare charges occur, does not mean that the experiencing of subsequent scare charges might not also be feared as an attack upon the ship. To be exposed to one dramatic noise of much greater intensity which almost knocked him over so as to cause intense fear does not mean, even if familiarity to "routine" scare charges may over time reduce the fear that a particular noise may signal something worse, that a much worse noise would be apprehended as a routine scare charge. And it is fallacious to conclude that no fear would arise from such an abnormal incident because subsequently it could be learned that it was the result of a scare charge. Assuming Mr Fenner could have left his post at the time to ask about its cause (about which there is no finding), he would have learned what I suspect would have been obvious enough within a few minutes anyway, namely that the ship had not been hit by a shell.
34 I also do not think the inference adverse to credit drawn by comparison between Mr Fenner's recorded reactions to that abnormal incident is warranted. The description of being "significantly alarmed" is drawn from a medical report of Dr Parker of 30 July 2001 and is that doctor's report of what Mr Fenner said to him; it is not presented as a verbatim report. What precisely Mr Fenner said to that doctor on that topic is not revealed. The description of being "in fear of his life" appears to have come from Mr Fenner's formal written statement that on many occasions he believed that "my life was in danger". It is a short statement drawn in relatively formal terms and does not, in context, support the observation of the AAT. The only direct quote noted is what he said to the AAT, that the scare charges "scared the hell out of me". I observe that Dr Kenny, in his report of 31 August 2005, records Mr Fenner as saying the scare charges "scared the living shit out of me". There is not, in my view, in that material any foundation to warrant the criticism that his reaction to the scare charges was somehow inconsistent and therefore unconvincing.
35 The AAT also referred in some detail to Mr Fenner's report of the full steam ahead incident. It was critical of him nominating dates when that incident occurred, and then changing them. It was also critical of his recounting of the detail of the event.
36 As to the latter, the AAT set out Mr Fenner's description of that event as recorded by Dr Parker in his medical report of 30 July 2001, to the Veterans' Review Board, in his written statement of 12 February 2003 (when for the first time a date is mentioned - about February 1968) and orally to the AAT at its first and subsequent hearings. Mr Fenner at the first hearing of the AAT said that he was "pretty sure" that a leading seaman Jack Pegg told him the full steam ahead order was because a submarine was in the area, and Mr Pegg's statement confirmed an occasion when he received an order to go full steam ahead. However, Mr Pegg was not on HMAS Sydney in February 1968, nor according to his service record on any trip on HMAS Sydney during Mr Fenner's operational service to Vietnam. The AAT described Mr Fenner's claim that Mr Pegg was in control in the engine room as "opportunistic fabrication." At the second AAT hearing, Mr Fenner, according to the AAT, said the full steam ahead incident happened on 28 January 1968. The transcript quoted by the AAT records Mr Fenner as saying "… last trip, and I think it was about the 28 January - I can't remember what time it was." He said the HMAS Stuart, the escorp ship "got a ping … submarine in the area." He said he learned of those details, after he got off watch, through the ship's log (he does not say whether he got that directly or through passed on information). In fact, there was a copy of a log page apparently for 29 January 1968, showing HMAS Sydney going full steam ahead for about eight minutes.
37 Subsequent inquiries led the AAT to conclude that on 29 January 1968 HMAS Stuart reported a possible submarine contact to HMAS Sydney, and that while HMAS Stuart investigated, HMAS Sydney cruised on an increased speed and altered course frequently, but to 20 knots rather than to full steam ahead (about 24 knots). Also, on 3 February 1968, on the return trip from Vietnam on that trip, HMAS Stuart reported a possible submarine contact and HMAS Sydney altered course and went to "full ahead both engines". That order was in effect for only two minutes, as the suspicion of a submarine in the area was quickly discounted.
38 The AAT assumed, in Mr Fenner's favour, that on 29 January 1968 on the way to Vietnam, the HMAS Sydney cruised at a higher speed than normal and made frequent course changes for about one hour, and that an order for full ahead both engines was given on that occasion. It found that the engine room received such an order by the engine room telegraph, without any explanation of the cause of the order. After the order was cancelled, the engine room would have been told by telephone what had caused the order to have been given.
39 The AAT noted that Mr Fenner had told Dr Parker (recorded in his report of 30 July 2001) that he feared the possibility of a Russian submarine; that to the Veterans' Review Board he feared the possibility of a submarine which he learnt at the end of the watch was rumoured to be Russian; that in his evidence to the first AAT hearing he first made no reference to the suspected submarine being Russian and orally said "we all thought it has to be Russian"; and that to the second AAT hearing he first said he found out about the "ping" from a submarine only at the end of his watch, then that the engine room was telephoned within a few seconds, and then "[a]fter we settled down a bit". It said that the variations in his evidence about the submarine being Russian and about how the information was conveyed to people in his position "add to our concerns about the reliability of Mr Fenner."
40 Again, whilst accepting that Mr Fenner's evidence had the variations referred to, I do not appreciate their significance in the way the AAT described. It accepted that, while he was in the engine room on 29 January 1968, full steam ahead was ordered for some time. Mr Fenner's evidence in essence was that such an event was extraordinary. That was not in issue. It is a small step to conclude that, as Mr Fenner said, it may be because of a submarine threat without any further information. When that suspicion was confirmed, and the extent to which the belief was that it was a Russian submarine, are matters of detail which do not undermine the significance of such an event. The AAT accepted that the full ahead incident occurred. Its concern was whether Mr Fenner reacted to it as he claimed. How the AAT used those variations to conclude, contrary to his claim, that Mr Fenner did not fear at all a submarine attack from the accepted occasion is unclear. The fear Mr Fenner claimed is an entirely rational one. Different individuals no doubt react to such circumstances differently. It does not follow therefore that Mr Fenner had no fear of such an attack at all from the full steam ahead incident. Nor, on an occasion of such fear, is it appropriate to expect the degree of clarity and precision of expression which the AAT expected, especially when the events are being related many years later.
41 The AAT also took into account Mr Fenner's evidence about the Tet Offensive as amounting to a severe stressor, as he claimed to have feared that HMAS Sydney was vulnerable to shelling as it was berthed less than two kilometres from the shore. He did not press that claim as another "severe stressor". The AAT regarded his evidence as "another example" of deliberate exaggeration. Mr Fenner said:
Aboard the deck of HMAS Sydney, whilst docked in Vung Tau Harbour, we could see the Tet Offensive taking place on the shore. There were loud explosions, and we could also see the flashes of gun and missile fire… I sincerely believed that we were a legitimate target for the Viet Cong, … everyone on board were concerned because we were within striking distance …
42 Mr Fenner also referred to the regular instruction to unload and load up and leave Vung Tau Harbour as fast as possible, as evidencing the existence of a threat to HMAS Sydney. Some evidence pointed to the need for such haste as being to be in a perilous position for as short a time as possible. Indeed, the need for scare charges at all confirms that matter. Why the AAT should somehow regard Mr Fenner's evidence in this regard as somehow tainted by exaggeration is not clear to me.
43 The AAT found that HMAS Sydney unloaded and loaded in Vung Tau Harbour between 7.03 am and 12 noon on 3 February 1968, and then moved to a more remote moorage for a further two hours. Why it engaged in that manoeuvre is not addressed in the AAT's reasons, but the evidence suggests that it was to secure a safer mooring place.
44 The evidence of others, and the logs of HMAS Sydney and HMAS Stuart, indicated no war like activities occurred in the vicinity of HMAS Sydney on that occasion. There was, the AAT said, no confirmation of incidents "even remotely resembling the incidents described by Mr Fenner." The AAT accepted that there were air strikes on Long Son Island on 3 February 1968 that may have been visible from HMAS Sydney. But it was satisfied beyond reasonable doubt that any such activity did not represent a threat to HMAS Sydney and could not reasonably have been perceived as a threat by those on board. It therefore considered Mr Fenner's evidence about the Tet Offensive as "exaggerated and concocted." It also noted that his oral evidence suggested he and others were "watching the show" and that he did not say then that he feared death or serious injury in the circumstances.
45 The AAT then addressed whether Mr Fenner experienced a severe stressor.
46 It concluded:
While we are satisfied that Mr Fenner was exposed to scare charges during the course of his service we expressly disbelieve him when he says that he was in fear of his life. The same is true of the "Russian submarine" incident. We consider it more probably than not that the order was given for full ahead both engines and that HMAS Sydney manoeuvred thereafter for a period of about an hour. But we are satisfied that the crew in the engine room were not told of the reason for the order. We are satisfied beyond reasonable doubt that Mr Fenner has fabricated his account of being aware of the possibility of a torpedo attack by a submarine and having experienced intense fear and helplessness.
In short, we are satisfied, beyond reasonable doubt, that none of the matters relied upon by Mr Fenner were severe stressors, and in consequence we are satisfied beyond reasonable doubt that there is no sufficient ground for determining that his alcohol abuse/dependence is war-caused.