Background
6In light of the narrow scope of the appeal, it is possible to abbreviate the summary of the five day trial before the primary judge, whose judgment was delivered, promptly, a few days later.
7The appellant was a high school teacher, with a Master's degree in special education from the University of Newcastle, who taught students within schools located within correctional centres operated by the Department of Corrective Services. She was an employee of the Department of Education. In 2007, she was teaching at the George Anderson Walpole School, within the Kariong Juvenile Correctional Centre (Kariong), which is a maximum security institution.
8On 5 November 2007, while the appellant was teaching a class, a fight broke out between two students. The classroom was locked. The teacher's aide pressed the duress alarm, but there was no response for some period of time (she estimated 20-30 seconds). She was not relieved by prison wardens, contrary to her expectations and contrary to a memorandum of understanding between the two departments. Instead, the response took time, and when it came, it was from other teachers rather than Corrective Services officers.
9The appellant was not physically injured during the incident. However, the primary judge found that the appellant had been in a state of panic and distress, had started to bang on the window, and then a table, and had screamed to attract attention.
10The appellant returned to work on the following day. The trial judge found that she was distressed. She attended work again on the day after, but did not last through the morning. She has not returned to work subsequently.
11The primary judge found that the incident caused major psychiatric injury to the appellant, for which the State was liable (a) in its capacity as the appellant's employer and (b) as the operator of Kariong. The appellant commenced separate proceedings against the State in each of those capacities, which were heard together by the primary judge. This litigation has at all times proceeded on the basis that (a) it was open to the appellant to sue the State separately in each of those capacities, (b) the State's liability in each capacity was separately regulated, (c) questions of apportionment arose, and (d) the State was entitled to separate representation, in each respect as if the appellant's employer had been a different legal person from the operator of Kariong. It is not necessary to express any view on the correctness of that approach.
12It was common ground that the State's liability as employer was regulated by the Workers Compensation Act 1987 (NSW). By reason of s 151G, no claim for non-economic loss was available against the State in this capacity. Accordingly, this appeal relates only to the appellant's claim against the State as operator of Kariong. It was also common ground that it was necessary for the primary judge to apportion responsibility for the purposes of s 151Z(2) of the Workers Compensation Act. His Honour found that the State in its capacity as employer was 30% responsible, and in its capacity as operator 70% responsible. No challenge is made to that apportionment.
13The claim against the State as operator of Kariong was governed by the Civil Liability Act 2002. No damages may be awarded for non-economic loss unless its severity is at least 15% of a most extreme case: s 16(1). For more severe injuries, the statute prescribes a sliding scale, described in Berkeley Challenge Pty Ltd v Howarth [2013] NSWCA 370 at [5]:
"Damages for non-economic loss are required to be assessed as a proportion of a most extreme case: Civil Liability Act 2002 (NSW), s 16. Non-economic loss assessed at less than 15% of such a case cannot be compensated: s 16(1). An assessment between 15% and 33% gives rise to an award on a scale increasing from 1% to 33% of the prescribed maximum amount. The trial judge assessed the severity at 33% of a most extreme case, thus permitting an award of 33% of the maximum amount, being $171,500. The appellant submitted that this assessment of severity was disproportionate and that the proper figure should have been in the order of 25%. Because of the tapered scale, the result of such a variation has a disproportionate effect on the award. An assessment of severity as 25% of a most extreme case will give rise to an award of $33,780, being a reduction of $137,720. Thus, the effect of the taper is that a variation from 33% of a most extreme case to 25% gives rise to an 80% reduction in an award."
14By the end of the trial, it was common ground that the appellant's injury was at least 15% of the most extreme case. The State submitted that it was 15% of the most extreme case. The appellant submitted that it was 40% of a most extreme case. The dispositive paragraph of the reasons of the primary judge on this issue, which the appellant challenges, is [113]:
"In relation to non-economic loss I think the plaintiff's assessment of 40% of a most extreme case is too high and is even outside "the range". I think DCS's suggestion of 15% is below the range. I do accept the plaintiff's life has been significantly affected, that she has been unable to work and she spends most of her time in a depressed mood without the motivation to carry out even basic tasks. On the other hand she is not entirely without a sense of humour, she is able to travel, to go out and to interact with her children. She is having intensive treatment but she has not been hospitalised nor is there a suggestion of that occurring in the future. In my view 25% of a most extreme case is appropriate. This equates to a figure of $35,000 under Section 16 of the CLA."
15Earlier in his reasons, the primary judge had referred to the facts that the appellant had consulted a general practitioner in December 2000 for depression (arising from in-fighting amongst her daughters and her disquiet with the cold weather in Orange) and again in 2005 (arising from strained dealings with a fellow teacher). On the second occasion, the appellant was prescribed anti-depressant medication and continued working at the school with the other teacher. The primary judge said that:
"the strains between them were managed, it would appear, by mutual avoidance. The plaintiff did however maintain a good deal of anger arising from this situation which has played a part to the present time."
16The primary judge summarised the psychiatric evidence in some detail at [67]-[90], over eight pages. He said that the appellant first commenced seeing Dr Butler on 18 February 2008, but the appellant lost confidence in him and commenced seeing Dr Short in May 2009. Dr Short found (in a report dated 28 April 2010) that the appellant was suffering from a post traumatic stress disorder, but added:
"but the picture appears to be complicated by her personality style which demands her to be strong, confident and uncomplaining. She is full of anger at a fellow teacher with whom she had difficulties, the principal who took no notice of her complaints, the correctional officer who failed to protect her and most of all with herself for being weak and out of control."
17The appellant also saw Ms Gjerdrum, a psychologist who was consulted by the appellant in 2005 when having difficulties with a fellow teacher. She recorded excessive side effects to anti-depressant medication and that she preferred to rely on an exercise program and sessions with a psychologist. She observed that the appellant:
"remains extremely unwell, with poor presentation and diminished capacity to perform even simple routine self-care activities. She is unable to return to her previous occupation of teaching and is currently too unwell to perform alternative work activities."
18Dr Short and the psychiatrist called by the State, Dr Champion, each gave oral evidence. In particular, the primary judge dealt with the interrelationship between the psychiatric consequences of the incident in November 2007, and the ongoing anger as a result of the appellant's interaction with the other teacher in 2005. The primary judge found that the anger played "a greater part in her ongoing condition than she admitted in evidence". Nevertheless, his Honour found that it was not a factor in the development of her PTSD and the symptoms from which she continued to suffer. The primary judge found, accordingly, a causal connection which satisfied s 5D of the Civil Liability Act, and concluded at [74(d)]:
"The anger concerning the other staff member does play a part in the appellant's ongoing symptoms but it is minor. The defendants conceded that the part it played should not produce any reduction in damages."
19Dr Champion, called for the State, expressed a different view. However, the primary judge preferred Dr Short's opinion, principally because it was the product of a very long-term course of treatment, contrasted with the one consultation the appellant had had with Dr Champion.
20The primary judge recorded that:
"There was almost no cross-examination of the plaintiff's complaints about her condition since November 2007. She was not challenged about her feelings of anger, despondency or lack of motivation. She was not challenged about her failure to socialise or interact with her family and friends."
21The primary judge summarised the appellant's evidence as to her general mood being very low, which he said:
"was reflected by the manner in which she gave evidence in the witness box. Her tone was flat, she was quietly spoken and sometimes tearful. I have no reason to doubt the sincerity of her demeanour."
22The primary judge recorded that the appellant's sleeping problems were now under control (through the use of Temazepam and Xanax), that many anti-depressant medications had failed due to their side-effects, that she was often frightened and startled, cried easily and could not participate in normal social contacts due to an overwhelming sense of "not being bothered". His Honour said:
"The compelling impression I had of the plaintiff was that she simply could not summon the energy to go about the tasks, whether at work or at home, that she participated in prior to the incident."
23The primary judge recorded that there were occasions (shopping with her daughter or attending a party) where she could appear happy but that she felt like a "wind up toy". She described feelings of anger and agitation combined with feelings of guilt because she had not recovered. She said she had a "terrible" relationship with her husband.
24On the point that assumed importance in light of the grounds of appeal, both the appellant and Dr Short gave evidence about the effect of the litigation.
25The appellant accepted in cross-examination that the case had been a burden upon her "in the sense that it's been something that's causing you anxiety". She agreed that "that anxiety [had] increased, the closer the case approached". However, she maintained that once the case was concluded, it would not be possible to enhance her quality of life.
26Dr Short gave evidence, in chief, about the effect of the litigation:
"[S]he has absolute horror of this whole procedure. She sees herself as being a bludger; she doesn't like being in court; she doesn't see litigation as being right; she sees it being a weakness and she should get better herself. She's hugely motivated by, to get, to not be here and to get better."
27Understandably, Dr Short was not cross-examined on that evidence.