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JURISDICTION : DISTRICT COURT OF WESTERN AUSTRALIA
IN CRIMINAL
LOCATION : PERTH
CITATION : THE STATE OF WESTERN AUSTRALIA -v- TJD [2019] WADC 176
CORAM : TROY DCJ
HEARD : 25 OCTOBER 2019
DELIVERED : 13 DECEMBER 2019
PUBLISHED : 28 MAY 2025
FILE NO/S : IND 2257 of 2018
BETWEEN : THE STATE OF WESTERN AUSTRALIA
AND
TJD
Catchwords:
Criminal procedure – Mental impairment – Fitness to stand trial – Ability to defend charges – Retrograde amnesia – Nature of defence – Turns on own facts
Legislation:
Criminal Law (Mentally Impaired Accused) Act (WA), s 8, s 9, s 10
Result:
The accused is fit to stand trial
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Representation:
Counsel:
The State of Western Australia
:
Mr L Hobson
Accused
:
Mr D N Ryan
Solicitors:
The State of Western Australia
:
State Director of Public Prosecutions
Accused
:
Chelmsford Legal
Case(s) referred to in decision(s):
Kesavarajah v The Queen (1994) 181 CLR 230
Ngatayi v The Queen (1980) 30 ALR 27
R v Dennison (Unreported, NSWCCA, Library No BC8802160, 3 March 1988)
R v Drummond (Unreported, NSWCCA, Library No 60861/93, 27 May 1994)
R v Mailes (2001) 126 A Crim R 20
R v Peterson (No 2) [2014] NSWSC 966
R v Podola [1960] 1 QB 325; (1960) 43 Cr App Rep 220
R v Presser [1958] VR 45
R v RER [2001] WADC 133; (2001) SR (WA) 269
R v Richards (1994) 64 SASR 42
R v Sutherland [2012] ACTSC 62
R v T (2000) 109 A Crim R 559
R v W, R [2019] SASCFC 33
Russell v His Majesty’s Advocate (1946) SC (J) 37
Sinclair v The Queen (1946) 73 CLR 316
The State of Western Australia v Forde [2019] WADC 158
The State of Western Australia v Tekle [2017] WASC 170
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TROY DCJ:
Introduction
1
The State allege that between 28 February 2014 and 1 September 2015 the accused man, TJD persistently engaged in sexual conduct with MMR, a child under the age of 16 years. During this period the accused was aged 28 and then 29, whereas MMR was aged, variously 13, 14 and 15. The original statement of material facts asserted that during that period TJD sexually penetrated MMR on 12 specified occasions including penile/vaginal intercourse. It is also alleged that TJD sexually penetrated MMR with various sex toys.
2
TJD was arrested and charged on 2 February 2017. Over the next 13 months TJD appeared at the Magistrates Court on 12 occasions. On 2 March 2018 TJD attempted to kill himself. Attending police officers saved his life by breaking down a door and St John Ambulance (SJA) officers then resuscitated him by CPR resulting in a return of spontaneous circulation after four minutes. On examination at the scene his Glasgow coma scale was 3/15. He was admitted to the Emergency Department of Fiona Stanley Hospital where his GCS score was 11/15 on arrival subsequently improving to 14/15. He absconded from the ward for a cigarette on 6 March but was found nearby and returned by the SJA. An MRI scan conducted on 8 March 2018 revealed a pattern of signal abnormality consistent with hypoxic ischaemic injury. He was discharged on 22 March 2018 after 22 days of rehabilitation. He next attended the Magistrates Court on 3 May 2018.
3
On 7 December 2018 TJD was committed from the Magistrates Court to the District Court without entering a plea, under s 17 of the Criminal Law (Mentally Impaired Accused) Act 1996 (WA) (the Act). Thereafter the matter was set down for a fitness to stand trial hearing on 25 October 2019, although it was only on the morning of that hearing that a formal application was made that TJD was unfit to stand trial.
The 25 October 2019 hearing
4
On 25 October 2019 the State called as a witness a senior clinical neuropsychologist, Dr Mandy Vidovich. Counsel for TJD cross-examined Dr Vidovich. I received a report of Dr Vidovich dated 27 September 2019 as exhibit 2. The defence did not call TJD to give evidence, but did call Dr Craig Hargate, also a neuropsychologist.
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I
received a 1999 article referenced by Dr Hargate entitled ‘Disproportionate retrograde amnesia in a patient with herpes simplex encephalitis’ as exhibit 1. I received Dr Hargate’s initial report of 13 April 2019 as exhibit 3.1 and an addendum report of 4 August 2019 as exhibit 3.2.
5
Following the evidence of the two respective expert witnesses I reserved my decision having made programming orders for written submissions. Counsel for TJD was not in a position to provide written submissions any earlier than 18 November 2019. Counsel for the State was not in a position to provide responsive submissions any earlier than 29 November 2019.
Material provided post the 25 October 2019 hearing
6
On 25 November 2019 counsel for TJD forwarded an urgent email from Dr Hargate. As will be seen, in the course of the 25 October 2019 hearing each party directed some questions as to the significance, or otherwise, of the fact that there had been no further MRI brain scan conducted on TJD since March 2018. Dr Hargate disagreed with the suggestion in cross-examination that a follow-up MRI would have enabled a more definitive conclusion or opinion about retrograde amnesia.1 Following the hearing, Dr Hargate advised that it had come to his attention that TJD had a repeat MRI brain scan on 21 November 2019 at Fiona Stanley Hospital.
7
I formally received the 21 November 2019 MRI report as exhibit 4 and Dr Hargate’s 25 November email, which I treated as a further report, as exhibit 5. In accordance with further programming orders, the State filed a further report, dated 28 November 2019 from Dr Vidovich which I will receive as exhibit 6. The State then filed its responsive submissions on 3 December 2019.
Statement of issues
8
TJD is presumed to be mentally fit to stand trial: s 10 of the Act. Has TJD established on the balance of probabilities that he has a mental impairment as defined? If he does, is he is unfit to stand trial because his asserted retrograde amnesia means that he is unable to properly defend the charges?
1 ts 117.
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Relevant personal information relating to TJD
9
The following details of TJD’s background emerged from the medical reports and the source documentation. TJD was born on 24 November 1985 in Zimbabwe. He moved to Australia with his parents in around 2000. He is the youngest of four children. His parents separated at some stage and his father is now deceased. He left school at the end of year 12.
10
As I have mentioned, the alleged offences were committed between 28 February 2014 and 1 September 2015. Detectives from the sex assault squad executed a search warrant at TJD’s home address on 15 September 2016 and seized items belonging to him. He was interviewed at the Murdoch police station and admitted to knowing MMR. The police continued their enquiries before formally arresting and charging TJD on 2 February 2017.
11
On 2 March 2018 TJD was hospitalised as a result of his suicide attempt before being released on 23 March 2018. On 31 July 2018 an EEG was performed which revealed no reported epileptiform abnormalities. In November 2018 he was assessed by a clinical neuropsychologist Dr Vuletich who reported on 14 November 2018.
12
On 13, 14 and 30 March 2019 Dr Hargate interviewed TJD resulting in his 13 April 2019 report. On 12 and 13 August 2019 Dr Vidovich interviewed TJD leading to her report of 27 September 2019.
The alleged offences
13
The State have charged TJD with persistently engaging in sexual contact with MR a child under the age of 16 years with the period specified under s 321A(5) as between 28 February 2014 and 1 September 2015. The State are required to prove that TJD engaged in persistent sexual conduct on three or more occasions. I understand that the State, through MMR, will allege as follows.
14
In March or April 2014 TJD penetrated MMR’s vagina with his penis when she was aged 13. On a date unknown in 2014 when MMR was aged either 13 or 14 she performed oral sex upon TJD. On a date unknown in 2014 when MMR was aged either 13 or 14 TJD performed oral sex upon MMR.
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15
In May 2014 TJD penetrated MMR’s vagina with his penis when she was aged 14. This was after he had shown her a pornographic video purporting to show a father having sexual intercourse with his daughter.
16
In May 2014 TJD penetrated MMR’s vagina with his penis when she was aged 14. TJD tied her hands and feet in this episode so as to simulate rape.
17
On another occasion at around the same time TJD required MMR to wear a school uniform and again they engaged in penile/vaginal sexual intercourse.
18
On 17 October 2014 when MMR was aged 14 they both stayed at the Rendezvous hotel at Scarborough Beach and engaged in sexual intercourse utilising three different positions. Within the brief there is evidence of a booking made by TJD for one night on 17 October 2014 for 2 adults – PB 145.
19
On another occasion shortly after that time TJD penetrated MMR’s anus with his penis. On another occasion shortly after that time it is alleged that TJD penetrated MMR with a dildo.
20
On 15 May 2015 when MMR was aged 15 they both stayed at the Pagoda hotel at Como and TJD performed cunnilingus on MMR. He then penetrated her vagina with his penis until he ejaculated. Within the brief there is evidence of a booking made by TJD for one night on 15 May 2015 for 2 adults – PB 148 – 151.
21
Finally, in August 2015 TJD and MMR engaged in penile/vaginal intercourse for the last time.
22
None of these alleged events involve conduct of a nature that could have easily been forgotten by TJD.
23
Photographs said to be of TJD and MMR, in physical contact with one another, are in the prosecution brief at PB 157 – 158, 162 – 164, 175.
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The relevant statutory framework
24
Mental unfitness to stand trial is dealt with in pt III of the Act. Section 8 of the Act provides:
Interpretation
In this Part, unless the contrary intention appears –
mental illness means an underlying pathological infirmity of the mind, whether of short or long duration and whether permanent or temporary, but does not include a condition that results from the reaction of a healthy mind to extraordinary stimuli;
mental impairment means intellectual disability, mental illness, brain damage or senility;
trial means all court proceedings for an offence other than –
(a) proceedings in relation to bail; and
(b) sentencing proceedings.
25
Mental unfitness to stand trial is defined in s 9:
An accused is not mentally fit to stand trial for an offence if the accused, because of mental impairment, is –
(a) unable to understand the nature of the charge; or
(b) unable to understand the requirement to plead to the charge or the effect of a plea; or
(c) unable to understand the purpose of a trial; or
(d) unable to understand or exercise the right to challenge jurors; or
(e) unable to follow the course of the trial; or
(f) unable to understand the substantial effect of evidence presented by the prosecution in the trial; or
(g) unable to properly defend the charge.
26
These factors are framed disjunctively and so in the event that it is established that an accused has a mental impairment and any one of the factors particularised at s 9(a) to s 9(g) are established, it follows that he or she is unfit to stand trial.
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27
In this case however it is accepted that none of criteria (a) to (f) are met and the question on unfitness to stand trial depends entirely upon the establishment of criteria (g).
28
TJD is presumed to be mentally fit to stand trial unless and until the contrary is found under pt 3 of the Act: s 10(1).
29
Applying s 12(1) of the Act, I must decide the question of whether TJD is not mentally fit to stand trial on the balance of probabilities, after inquiring into the question and informing myself in any way I see fit.
30
A finding that an accused person is not mentally fit to stand trial will, if the conditions in s 19(5) are satisfied, result in that person being subject to a custody order without conviction. Alternatively, a finding of unfitness to stand trial could result in the indictment being quashed and the accused released.
Mental impairment
31
Dr Vidovich accepted that TJD has suffered some brain injury.2
32
The 8 March 2018 MRI brain scan revealed bilateral and systemic signal abnormality in the hippocampo and the caudate nuclei and putamen consistent with hypoxic/ischaemic injury. Dr Vidovich considered that a ‘good neuroradiologist’ will comment on whatever they find, regardless of whether the clinical question was asked in the first instance.3
33
In his 25 November 2019 email Dr Hargate stated that the 21 November report confirms that the brain damage that was previously found in March 2018 is still patently present and indeed there has been a worsening in the extent of that brain damage by further loss of brain volume.
34
The further MRI reveals that since March 2018 there has been volume loss with associated T2/FLAIR high signal in the globus pallidus and in the caudate heads, in respect of the latter greater on the right with less pronounced interval volume loss of these nuclei. Abnormal T2/FLAIR high signal persist in the hippocampal bodies, with mild interval volume loss. Imaging appearances are consistent with evolution of the previously demonstrated hypoxic/ischemic insult.
2 ts 75.
3 ts 81.
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There is no acute or interval infarct, new area of brain parenchymal
signal abnormality or overt interval brain parenchymal volume loss in other parts of the brain. Major intracranial flow voids are normal. Orbits and extracranial soft tissue structures within the field of view are unremarkable.
35
Dr Hargate contends that the worsening of brain damage since March 2018 confirms an error in Dr Vidovich’s assertion about oedema (rather than organic brain damage) being a potential cause of the findings on the 2018 scans. Dr Hargate maintains that, as he explained in his report, it is damage to these particular brain structures that are most implicated in retrograde amnesia. Additionally, Dr Hargate asserts that the extent of TJD’s brain damage is far worse than that of a patient with 10 years of retrograde amnesia that is reported in the article tendered as exhibit 1.
36
Dr Hargate considered that TJD had at least a mild vascular neurocognitive disorder as reported at par 14.9 of his report.4 He considered that TJD has an impairment of his cognitive function caused by hypoxic brain injury and that based on his cognitive testing and the radiology findings it was evident that TJD has brain damage.5 As set out at par 14.8 Dr Hargate applied the DSM-IV tool so as to reach a diagnosis of a mild vascular neurocognitive disorder.
37
So far as Dr Vidovich was concerned, this more recent MRI did not cause her to alter her opinion based upon the cognitive testing of TJD which I will discuss below. She considered that neuroimaging in and of itself should not be relied upon as confirmation regarding subjective concerns particularly if there are notable clinical discrepancies which she contends for in TJD’s case.
38
Obviously whether a person is suffering from a mental impairment is to be determined at the time of the application. The onus of proof is on TJD. He relies upon the MRI scans of 8 March 2018 and 21 November 2019 in combination with Dr Hargate’s neuropsychological assessment.
39
The term ‘brain damage’ is not further defined in the Act. The word ‘damage’ is not defined in Butterworth’s medical dictionary. If one has recourse to the Oxford English dictionary it would appear
4 ts 93 – 94.
5 ts 111.
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that the terms damage and injury are interchangeable.
Injury in turn means a hurt.
40
I am satisfied that the injury initially noted on 8 March 2018 still exists. I note that the initial MRI scan was conducted some six days after the original insult. I apply a layman’s understanding that unlike most other cells in the body, brain cells do not regenerate when they are destroyed. That does not mean that a recovery cannot occur. It does, it seems to me, mean that the original injury is permanent in the sense of a loss of cells that cannot be regenerated, although the brain has a capacity to reorganise itself, to an extent, in order to regain lost function. That assessment is consistent with the 21 November 2019 MRI.
41
Viewed in that way, TJD will always be subject to a brain injury and accordingly I am satisfied that he has a mental impairment as defined under s 8 of the Act. I must now consider whether that injury means that TJD is unable to properly defend the charge, in particular because of his suggested retrograde amnesia.
Retrograde amnesia
42
Dr Vidovich explained that retrograde amnesia is the inability of an individual to be able to recall information preceding the injury or insult to the brain.6 Dr Vidovich accepted the possibility that TJD has some inefficiencies or mild deficits in his memory.7 She accepted that he has suffered some brain injury.8 When asked about the possibility that this hypoxic brain injury resulted in retrograde amnesia Dr Vidovich noted that retrograde amnesia is typically correlated with the severity of the brain injury. The brain cells that have a vulnerability to the effects of lack of oxygen or blood supply would tend to be around the temporal lobes.9
43
Dr Vidovich noted, however, that neuropsychologists do not know what components of the brain are specifically involved in retrograde amnesia, and it could be in multiple different parts of the brain.10 She accepted that brain damage, depending on where it is, could result in retrograde amnesia.11
6 ts 49.
7 ts 74.
8 ts 75.
9 ts 76.
10 ts 79.
11 ts 80.
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44
Dr Hargate considered TJD’s brain damage as consistent with retrograde amnesia, noting his summary of the literature at par 12.13. The common brain structures associated with retrograde amnesia matched those reported by the radiologist.12
45
So, there is no doubt that the brain injury TJD sustained could have left him with retrograde amnesia.
46
By reference to par 12.6 Dr Hargate defined retrograde amnesia as a loss of, or difficulty retrieving memories for events that have occurred, or information that has been learnt before the onset of an injury or disease.13
47
Amnesia is defined in the Butterworth’s medical dictionary second edition as ‘loss of memory of varying degree attributable to organic or psychological causes’. Retrograde amnesia is ‘loss of memory for events preceding the causal illness or injury’. Anterograde amnesia is ‘the loss or impairment of the memory for events which have occurred since the onset of the causative disorder and after consciousness has been regained’.
Does TJD exhibit anterograde amnesia?
48
Dr Vidovich explained that anterograde amnesia is (an impairment to) the capacity of the individual to lay down new memories to recall, new information and to then be able to provide that information at different time points.14 Dr Vidovich conducted a formal assessment with the Evaluation of Competency to Stand Trial – Revised tool.15 Results from the most recent assessment together with scores obtained at the time of his March 2018 evaluation did not support TJD having an anterograde amnesia.16 According to Dr Vidovich an intact anterograde memory makes it less likely that a person has retrograde amnesia.
49
Dr Vidovich noted a consistency in her results and those obtained by Dr Hargate regarding TJD’s capacity to learn and retain new information.17
12 ts 112.
13 ts 93 – 94.
14 ts 48.
15 ts 47.
16 ts 48.
17 ts 49.
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50
In terms of testing for anterograde amnesia (ts 64), Dr Vidovich administered a 16-item wordlist test which involved listening to 16 words repeated a number of times and after a certain number of repeats assessing how many words the patient could remember. Dr Vidovich agreed that when patients are exposed to a test more than once there is an effect called the ‘practice effect’. A sub sample will be administered a test a second time to identify the degree to which previous exposure to that information, has influenced their subsequent performance. And so one looks at practice effects to identify whether any chance in the person’s performance is over and above what might be anticipated in the context of practice effects alone.18 Dr Vidovich considered the concept of practice effects to be quite interesting in people that have memory deficits in that ‘if you don’t remember, you don’t remember.’19 So, if TJD demonstrated improvement because of practice effects, it would suggest that his memory is pretty good. He also improved on the prose material test, but she could not comment on how much that could be due to the practice effect.20
51
Although TJD made a high number of repetitive errors Dr Vidovich did not consider that necessarily shows some weakness in the executive function of his brain. She felt that that was more to do with some attentional issues with TJD, in terms of being able to consistently monitor what it was that he was saying. That might be due to some anxiety in the test situation.21
52
With respect to this test, Dr Hargate noted that TJD’s performance reached below average limits.22 Dr Hargate considered that Dr Vidovich’s methodology in administering exactly the same test was ‘unforgiveable’ because there was another alternative option. In respect of that test and the prose material from the Wechsler Memory Scale23 Dr Hargate considered that Dr Vidovich’s findings that TJD scored average to above average on the tests was attributable to the practice effect.24
18 ts 61 – 62.
19 ts 63.
20 ts 64.
21 ts 67.
22 ts 103 – 104.
23 ts 104.
24 ts 105 – 106.
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53
In regards to the prose test Dr Hargate considered that it was difficult to quantify the degree of the practice effect as there was not the same level of repetition. In respect of delay recall, Dr Hargate scored TJD as below average whilst Dr Vidovich recorded a score of average. Notwithstanding the apparent difficulty in quantifying the degree of the practice effect, again Dr Hargate attributed this superior result to the practice effect.25
54
I accept Dr Vidovich’s evidence that if TJD achieved an improved score in a subsequent test because of the practice effect that in itself demonstrates a capacity of the individual to lay down new memories to recall new information and to then be able to provide that information at different time points. That would tell against anterograde amnesia, certainly a moderate or severe anterograde amnesia. Dr Vidovich never concealed the fact that she employed the same test. She was untroubled by Dr Hargate’s concerns, given her opinion that if a patient genuinely suffered from anterograde amnesia it would follow that their performance could not possibly improve because of the practice effect. Dr Hargate was entitled to criticise the methodology used by Dr Vidovich, but to describe it as ‘unforgivable’ was, in my view, unjustified.
55
Dr Hargate did not consider anterograde amnesia to be an all or nothing concept. Rather, it can be present in different degrees. He noted that at page 1 of the article tendered as exhibit 1, the authors refer to the combination of retrograde amnesia with relatively mild or absent anterograde amnesia.26
56
From the scores obtained for the patient in this article the authors concluded that she had mild anterograde amnesia.27 Dr Hargate considered that the results leading to that characterisation were comparable to the results obtained both by him and Dr Vidovich for TJD.28 Dr Hargate considered that it was possible to have retrograde amnesia with mild anterograde amnesia.29
25 ts 106.
26 ts 107.
27 ts 108.
28 ts 110.
29 ts 110 – 111.
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57
In terms of anterograde amnesia, TJD’s visual memory scores in the tests Dr Hargate conducted were extremely low. TJD’s verbal scores were mildly reduced. Accordingly Dr Hargate felt that TJD had mild to moderate or mild to severe anterograde amnesia, so that it is difficult to have one term to encapsulate two disproportionate scores.30
58
On balance I accept that TJD has some impairment of memory for events that have occurred since 2 March 2018. The extent of that impairment is difficult to quantify. In my view it is significantly less than the extent of the retrograde amnesia contended for. Particularly given that the latter is said to extend for four or five years and is so profound as to completely defeat any ability of TJD to independently remember anything about MMR.
Does TJD exhibit retrograde amnesia?
The suggested length of the retrograde amnesia
59
Dr Hargate’s contention that TJD has retrograde amnesia was based upon the March 2018 MRI, testing and other collateral information but also reports from TJD himself and TJD’s mother.31 Neither TJD nor his mother, however, gave evidence at the 25 October hearing. Dr Hargate found it difficult to quantify the degree of retrograde amnesia he contended was present in TJD. His characterisation of moderate was based upon the fact that it appears to span a period of about four to five years.32 So, on Dr Hargate’s assessment TJD has an inability to be able to recall information in the period of approximately March 2013 or March 2014 to March 2018. The alleged criminal charges commence in February 2014. Whilst I am satisfied that it is medically possible for TJD to have retrograde amnesia for this period, the coincidence with the commencement of the alleged period of offending is striking.
Can there be partial retrograde amnesia?
60
Dr Vidovich considered that ‘intermittent or patchy recall’ is inconsistent with the concept of retrograde amnesia. Dr Vidovich considered that clinical literature references retrograde amnesia as a blanket difficulty in a person’s ability to recall information from the time point preceding the injury back in time. Amnesia in and of itself is a significant impairment in recall.33
30 ts 112.
31 ts 115.
32 ts 111.
33 ts 56.
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61
Dr Vidovich considered that ‘amnesia’ is an all or nothing term. It means that a person cannot learn and retain new information. So generally clinicians will refer to a person as having a memory deficit rather than amnesia per se.34 Dr Vidovich was asked about the 1999 academic article, exhibit 1, which asserted that,
over the past two decades, however, focal or isolated retrograde amnesia, severe retrograde amnesia, in combination with relatively mild or absent anterograde amnesia’ has been reported.
62
Dr Vidovich pointed to the work of a Dr Michael Kopelman which identifies and critiques some of this previous earlier literature where there have been (supposed) cases of a disproportionate or an isolated retrograde amnesia.35
63
Dr Vidovich stated that neuropsychologists would typically not use the term ‘amnesia’ unless they were specifically referring to an all-encompassing memory impairment. They would generally use the terms ‘deficit’ or ‘impairment’ unless the individual actually has amnesia, which one might see in someone with Alzheimer’s disease who cannot take on board or learn or retain new information. In that context the characterisation ‘mild’ would generally not apply.36
64
For his part, Dr Hargate disagreed with Dr Vidovich’s conclusion that there is no convincing evidence that TJD is suffering from retrograde amnesia.37 He disagreed with the suggestion that retrograde amnesia involves the complete absence of recall of pre-injury events. He considered that was not supported by the research evidence. Rather, the research evidence supports particular patterns. Dr Hargate noted that there are some exceptional cases where retrograde amnesia can be very dense, namely a complete absence of memory, but in most cases it is a matter of degree.38 One pattern in the literature is of memories that are oldest being the best. And then as you move forward in time towards the injury, the capacity to remember progressively worsens.39 As noted below, that does not seem to be the pattern with TJD. In Dr Hargate’s opinion retrograde amnesia is variable.40
34 ts 70.
35 ts 71.
36 ts 73.
37 ts 113.
38 ts 94.
39 ts 94 – 95.
40 ts 95.
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65
Dr Hargate considered that the fact that TJD could remember some events that had happened two weeks earlier, in the context of his inability to remember other events (in particular details about his alleged offending) simply shows that his retrograde amnesia is patchy. It is not an absolute all or nothing phenomenon.41
66
Based upon the material before me I do not consider there is unanimity with the neuropsychological profession as to whether one can apply epithets such as ‘mild’ to amnesia, retrograde or anterograde or whether if one is using such terms one is really describing memory deficits not amnesia.
The significance of intact anterograde amnesia
67
Dr Vidovich considered that the fact that TJD can lay down new memories, such as reading about his stated pre-injury alcohol consumption in the medical notes suggests that his anterograde memory is intact. His ability to remember things he had read in the hospital notes or things that people have told him since his hospital admission and since his brain injury, would suggest that his anterograde memory is intact. That makes it less likely that he has a retrograde amnesia.42
68
Dr Vidovich elaborated that with a hypoxic brain injury it is rare, although not impossible, that an individual is capable of learning new things but cannot recall past events. She considered a situation where one had retrograde amnesia combined with a mild form of anterograde amnesia as unlikely but it could occur.43
69
As I have noted, in my view any anterograde amnesia is significantly less than the extent of the retrograde amnesia contended for.
Can retrograde amnesia be objectively tested?
70
Dr Vidovich stated that there are no formal test measures to assess malingering for a retrograde amnesia.44
71
Dr Vidovich stated that with any sort of assessment of retrograde memory, there are very limited test materials available because it is such a rare condition. Clinically it is rarely assessed. A clinician would obviously rely on a patient’s self-report but would also rely on
41 ts 97.
42 ts 58 – 59.
43 ts 61.
44 ts 53.
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their understanding of how memory works.
Dr Vidovich accepted that a hypoxic brain injury can impact on memory.45
Dr Vidovich’s evidence on the significance of other post 2 March 2018 events TJD can recall
72
Dr Vidovich expressed an opinion that initial neuropsychological assessment in the context of evaluation for TJD’s criminal matters revealed invalid test performances and significant concerns regarding attempts to feign cognitive impairment.46
73
Dr Vidovich noted numerous examples of TJD having intact retrograde memory and a pattern of recall that would be inconsistent with the stated level of retrograde amnesia. Dr Vidovich noted that with retrograde amnesia one would typically find graded memory loss, in that the events closest to the time of the injury are most challenging or most difficult for the person to recall, but when the person goes back in time, the memories are more relatively preserved.47 If that is so, then staying with Dr Hargate’s period of about four to five years, memories of around February 2014 when the offending is said to have commenced and when TJD is alleged to have met MMR should be relatively more preserved then, for example, events in February 2018. Further, if TJD was able to recall past events closer to the time of the injury, his recall for events further back in time should be intact to a degree.
74
Dr Vidovich referred to TJD’s self-report explaining his retrograde amnesia as inconsistent with the clinical evidence and with the research evidence around the nature of this condition. At the time of TJD’s hospital admission he was interviewed by a number of clinical professionals within the hospital and was seemingly able to provide details around events very close in time and leading up to his hospital admission.48
75
Dr Vidovich was asked about some sections of Dr Hargate’s report at par 5.9 that she commented upon in her own report. Dr Hargate had referred to a review by a consultant psychiatrist on 4 March 2018 where TJD could recall that he had moved house with his partner two weeks ago, had his own business called Panther Computers and works from
45 ts 59.
46 ts 53.
47 ts 49.
48 ts 50.
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home.
49 He did tell the psychiatrist that he could not remember his impending court case and charges, was asking why he was in hospital and describing his memory as fuzzy. On 7 March 2018 TJD ‘eventually admitted’ that he was involved in a court case which he found frustrating: par 5.11. On 8 March he could recall buying helium from a party supply store but was not sure why and said the incident was still fuzzy: par 5.17.
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Also, at par 9.9 Dr Hargate had noted that TJD informed him that in the period from February 2017 to March 2018 he consumed alcohol more heavily.50 As set out at par 7.5 TJD reported to Dr Hargate that he worked in Karratha as a business systems analyst on a salary of $120,000 to $150,000 for seven years, and last worked in this role in 2016 when he was made redundant. He also advised that he has worked in the Uber industry since then.51
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When asked about TJD’s professed inability to recall any of his prior IT knowledge, Dr Vidovich considered that it would be quite unusual to have no recall at all of TJD’s previous IT knowledge.52
Dr Hargate’s evidence on this point
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Dr Hargate considered that there was no reason for TJD to have falsely asserted memory problems two days or so after his suicide attempt.53 Of course, if TJD recalled that 13 months earlier he had been arrested for extremely serious sexual offences with a child and that he had made multiple court appearances in respect of that matter since that time, objectively there is such a motivation.
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Dr Hargate accepted that TJD recalled some aspects of his work but not others, in particular his professed inability to recall any of his prior IT knowledge. When advised that Dr Vidovich had expressed some scepticism about this, Dr Hargate stated, really as an assertive proposition, that TJD was exaggerating at this point. There was, of course, no evidence from TJD and Dr Hargate has not contemporaneously noted a belief that his patient was exaggerating at that point.54
49 ts 50 – 51.
50 ts 51.
51 ts 52.
52 ts 60.
53 ts 40.
54 ts 99.
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Dr Hargate considered that the notion of recall being patchy was consistent rather than inconsistent with a diagnosis of retrograde amnesia and would evidence a more moderate or milder form of such amnesia.55
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When asked about TJD’s apparent recall of some matters, Dr Hargate thought that TJD had some fragments or ‘snippets’ of memory.56 When asked about the fact that TJD seemingly recalled that:

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