46 It was common ground that this was a matter that had to be determined as at the time of the appellant's resignation, namely 20 June 1989.
47 It was here that the greatest controversy arose between the parties. The appellant said that he was unfit to perform his duties as at the date of resignation. He conceded that he had attempted them but said, on the basis of his evidence, that whilst he could attempt to undertake his duties he was unable to complete them. That is, he was unable to perform all of the duties that were required upon him by completing them. He gave instances of pursuing offenders but being unable to catch them because of the condition of his right knee. He gave examples of avoiding certain activities and ensuring that they were performed by others within his team because he was physically incapable of performing them. The respondent, however, emphasised that although the appellant was unable to undertake each and every one of the duties that he would have wished personally to be able to perform, he was nevertheless performing his duties with minimal time off work.
48 The resolution of this controversy requires an examination of what is meant by the word "incapable" in the sense of exercising certain functions of a police officer.
49 It seems to me that incapability of exercising functions is, according to ordinary English usage, equivalent to incapacity to perform those functions. The two expressions seem to me to be synonymous and can be used interchangeably. Certainly, that is exemplified by the definitions of "incapable" as referred to in the Macquarie Dictionary and the Oxford Dictionary. They are "not capable" (The Macquarie Dictionary) and "Not having the capacity, power, or fitness for a specified function, action, etc; unable." (Oxford English Dictionary Online)
50 I had reason to make observations about the meaning of the expression "incapable of discharging the duties" in Ford, Roger v State Authorities Superannuation Board [1994] NSWIRComm 217. I said:
"The words 'incapable of discharging the duties of ..... office' in my opinion equate with the expression 'incapacity for work' an expression which is commonly encountered in Workers' Compensation legislation. See for example s.33 of the New South Wales Workers' Compensation Act 1987. It is a fundamental concept in the practice of Workers' Compensation law that a person is incapacitated for work if he or she cannot undertake the work, in a sense of actually performing it (see for example Arnotts Snack Products Pty Ltd v Yarcob (1985) 57 ALR 229 @ 230) or if the person is unable to attempt work (see for example Ball v William Hunt & Sons Ltd (1912) AC 496)." (At page 18)
51 It will be seen that the extract, which I have set out above, refers to the "duty of office" of a police officer, whereas the reference in these proceedings is to incapability of "personally exercising the functions of a police officer…"
52 I have previously observed that the reference in s 10B(1) to s 14(1) of the Police Act is itself unhelpful. The online Macquarie Dictionary defines "function" as, relevantly, "the kind of action or activity proffered to a person, thing or institution."
53 The online Oxford English Dictionary defines "function", relevantly, as "the kind of action proffered to a person as belonging to a particular class, especially to the holder of any office; hence, the office itself, and employment, profession, calling, trade."
54 In a general sense, it might be said that when considering the functions of a police officer, one is considering the duties performed by a police officer in the exercise of powers vested in him or her.
55 There is a detailed consideration of the functions and responsibilities of police officers both at common law and under statute in the judgment of Campbell JA in the New South Wales Court of Appeal in State of New South Wales v Tyszyk [2008] NSWCA 107. His Honour reviewed the history of the common law office of a constable and discussed police powers and duties both at common law and under statute.
56 There are provisions in the Police Act that define, in s 6, the services to be provided by the Police Service in terms of the exercise of the functions of the Police Service. As Campbell JA noted, there are well-recognised common law duties of a constable of police including preventing and detecting crime, collecting evidence with respect to crime, protecting property from criminal injury, preventing or assisting in preventing disturbances or breaches of the peace and the like. The performance of these duties would, in my opinion, constitute inter alia the functions of a police officer. Accordingly, in this sense, the capability or incapability of a member of the police force of personally exercising the functions of a police officer refer in general terms to the carrying out or performance of duties and powers invested in a police officer at law. I am reinforced in this conclusion by the use of the word "personally" in the context of the exercise of functions of a police officer as referred to in s 10B(1).
57 After I had completed these reasons for judgment, by memorandum dated 12 June 2009, counsel for the appellant and the respondent jointly forwarded to me a copy of s 1 of the Police Regulation (Superannuation) Act. That is a definition section and includes, within sub-section (4), a reference to "function". Sub-section (4) is in the following terms:
"(4) In this Act, a reference to:
(a) a function includes a reference to a power, authority and duty, and
(b) the exercise of a function includes, where the function is a duty, a reference to the performance of the duty."
58 It is not clear whether the reference to "the functions of a police officer" contained with s 10B(2)(c) of that Act may be subject to the meaning assigned to a function included within sub-section (4) of s 1. This is because the reference in 10B(2)(c) is to the functions of a police officer referred to in s 14(1) of the Police Act. It is not necessary, however, for me to determine whether sub-section (4) of s 1 applies because it clearly accommodates the performance of the duty of a police officer within its terms, a conclusion which I had reached independently of any consideration of s 1(4) of that Act.
59 I find, based on my conclusion about the acceptance of the opinions expressed by Drs Scougall, Davis and Benanzio, that as at 20 June 1989, the appellant was unable to undertake and perform all of the functions of a police officer in the sense that whilst he may have been able to attempt the physical activities which were required of him as a normal part of his work as a detective, he was incapable of executing, in the sense of completing, those duties because of the inherent instability in his knee and because of the consequential impact on his knee if he attempted to perform those activities. The activities that he was required to perform as a detective were integral activities recognised as constituting the functions of a police officer, in the manner to which I have previously referred. On this basis, I conclude that the appellant was incapable of personally exercising the functions of a police officer as referred to in s 10B(1). The order sought by the appellant which I have referred to in [4] above may be seen to have been inelegantly framed because, apart from a reference to "the infirmities of the right knee injury" and "post-traumatic right knee osteoarthritis", there is then a reference to a meniscectomy which is, as I understand it, an operative procedure and would not of itself constitute an infirmity. Nevertheless, there is abundant evidence that the appellant does have an infirmity of the right knee and, to this extent, the addition of the word "injury" does not add anything.
60 For the reasons that I have given, I conclude that, after consideration of the relevant evidence, the appellant was incapable as at the date of his resignation as a police officer, from the infirmity of the right knee, of personally exercising the functions of a police officer as referred to in s 14(1) of the Police Act. In so concluding, I certify to that effect.
61 For completeness, I observe that the parties have agreed that there is compliance with s 10B(2)(a) and that it is not necessary that I consider this aspect. For completeness, I also note that in certifying as to the matters referred to above I have had regard to medical advice on the appellant's condition and fitness for employment being the medical practitioners whose evidence I have accepted and have thereby nominated them as contemplated by s 10B(2C).
62 The question of costs has not been argued before me and, if it be relevant, I formally reserve costs.