(a) the nature and quality of the conduct; or
(b) that the conduct was wrong (in other words, he could not reason with a moderate degree of sense and composure about whether the conduct, as perceived by reasonable people, was wrong).
Section 22(2)(a) of the Impairment Act, as to which White also complained as I have mentioned, says that "if there is admissible evidence that raises the question of mental impairment -
(a) the judge must direct the jury to consider the question and explain to the jury the findings which may be made and the legal consequences of those findings."
It is apparent from the provisions of s.20(1) that the word "reasonable", in respect of which White complains in ground 1, appears, not in paragraph (a), but in paragraph (b), of the provision. Consequently, I shall treat that aspect of White's complaint, as being that the trial judge erred when he told the jury that "reasonable people", as in s.20(1)(b) of the Impairment Act, meant "ordinary people". What his Honour told the jury concerning the operation of the two provisions in question was this. First, the judge distinguished between the two limbs of the defence of mental impairment in s.20(1)(a) of the Impairment Act and said that, although they may operate in the alternative, White had chosen to rely on the second limb. Next, his Honour explained that the expression "wrong" in paragraph (b) of that sub-section meant "wrong in the eyes of reasonable persons; that is ordinary persons". The judge also said that the test was not "directed to moral or legal concepts ... but to the accused's awareness that reasonable people would disapprove as wrong the actions he is performing." Finally, the learned trial judge emphasised in his charge that White needed to persuade the jury that he could not reason with a moderate degree of sense or composure as to whether the conduct as perceived by reasonable people was wrong. In my view it is plain that the judge sufficiently explained to the jury the requirements of s.20 of the Impairment Act. In particular, I consider there was no relevant error in his Honour's reference in his explanation to "ordinary persons". In the context in which this explanation was given, it is plain that the jury would have understood the expression "reasonable people" to include normal or ordinary persons and, in my view, that would be consistent with the meaning that Parliament intended to attribute to the term "reasonable people" in that provision. It is also apparent from what I have said that the learned trial judge did not misunderstand the requirements of s.22(2)(a) of the Impairment Act as was contended for by White.