Credibility of Mr Gyimah
133 The fourth category of the grounds of appeal concerns his Honour's treatment of the credibility of the lay witnesses. I turn firstly to his findings in regard to Mr Gyimah.
134 Nield DCJ (at [104]) listed ten pieces of evidence that Mr Gymah gave. His Honour said, for reasons that he expressed, he did not accept that evidence.
135 The first three pieces of evidence concerned entirely irrelevant and trivial matters that had no bearing on the merits of the case. The other pieces of evidence are, however, capable of being material, at least to an extent.
136 His Honour said (in para (4) of [104]) that he did not accept Mr Gyimah's evidence that Mr Mackay, and the other three men were arguing amongst themselves because, he said, "I accept the evidence of Mr Barrett, Mr Martin and Dr Raman that … there was some pushing, shoving and wrestling between [Mr Mackay, Mr Barrett and Mr Martin]". His Honour's conclusion is a non sequitur. In any event, the evidence of pushing, shoving and wrestling supports Mr Gyimah's statement that the three men were arguing amongst themselves.
137 His Honour said (in para (5) of [104]) that he did not accept Mr Gyimah's evidence that Mr Martin called out "Nigger, go home. Nigger go home" because he did not believe that Mr Mackay, Mr Barrett and Mr Martin "whether or not affected by alcohol, would make such a racist remark in the presence of Dr Raman". His Honour, apparently, had in mind that Dr Raman, ethnically, was Indian. Racial hostility between Indian and African people is by no means an unknown phenomenon. In my view, the inference that his Honour drew because of the presence of Dr Raman was unsafe.
138 Nield DCJ did not (in para (6) of [104]) accept Mr Gyimah's evidence that one of the men used "some kind of key or something like that to scratch the paint of the car" because, "having seen both [Mr Mackay and Mr Barrett] giving evidence, I do not believe that either of them, whether or not affected by alcohol, would have deliberately and intentionally damaged [Mr Gyimah's taxi]". This finding was made despite the fact that, as his Honour acknowledged, Sergeant Hunt recorded seeing scratch marks on the rear left side door of the taxi and some scratch marks on that door can be seen on a photograph. In other words, there were scratches where, on Mr Gyimah's account, there ought to have been scratch marks. It was suggested that it was not proved that the scratch marks were fresh, although Mr Gyimah said that they were. In my view, his Honour's demeanour-based finding, contrary to the objective evidence, is difficult to support.
139 In my reasons (with which Mason P and Tobias JA agreed) in Goodrich Aerospace Pty Ltd v Arsic [2006] NSWCA 187; (2006) 66 NSWLR 186 at [16]-[31] I emphasised the need for care in making demeanour findings and the need to give adequate reasons for such findings. I pointed out (at [21]) the need to exercise particular care where a witness is from a different cultural and ethnic background to that with which the judge is familiar. There was such a need in this case.
140 There is nothing about a demeanour-based finding that makes it an exception to the rule that adequate reasons for a decision must be given. At the least, an unsuccessful party should be able to understand why the judge has disbelieved him or her and has believed someone else in preference. It may be open to a judge to hold that, having seen the witness give evidence sober, he or she does not believe that the witness would commit the conduct complained of when "reasonably intoxicated". But such a finding should be made with the greatest care, and should not be made without a rational analysis of the facts and with due regard to the material that is not in dispute or cannot be disputed or other findings or relevant matters that bear on the evidence of the witness in question.
141 Nield DCJ (in para (7) of [104]) did not accept Mr Gyimah's evidence that Mr Mackay and Mr Barrett threw themselves onto the boot lid making the car move up and down "because the boot lid did not reveal any marks suggesting or confirming this had happened". There was no evidence that their actions would have marked the boot lid. Whether marks would have been made depends on precisely what they did. If they were simply sitting on the boot lid and moving up and down (as Mr Gyimah testified) they may not have made any marks. The absence of marks is a slender ground for disbelieving Mr Gyimah's evidence in this respect. In fact, two small marks on part of the boot at the back of the taxi can be seen on a photograph and Sergeant Hunt said that she noticed a "slight" scratch in that area (Black 377). Mr Gyimah complained in his second radio call that "they" were jumping up and down on his taxi (see [97]-[100] above.
142 Nield DCJ (in para (8) of [104]) did not accept Mr Gyimah's evidence that Mr Martin reached through the driver's window and grabbed Mr Gyimah by the neck. He did so because one of the photographs taken by the police showed that the window was closed and the judge considered that it was "very unlikely that [Mr Gyimah] raised the window from the 'down' position to the 'up' position after the incident and before the arrival of police". In addition, his Honour concluded that a weather shield fitted to the window of the taxi driver's door would have made it "difficult, if not impossible, for Mr Martin to have put his upper body into the cabin of the taxi". Thirdly his Honour said, "having seen Mr Martin giving evidence, I do not believe that he, whether or not affected by alcohol, would have deliberately and intentionally assaulted [Mr Gyimah]."
143 Mr Gyimah testified that he always drove with his window down, even in winter. In cross-examination it was pointed out to him that the photograph showed the driver's window up. Mr Gyimah explained that when the police arrived they told him to leave the car and it is common ground that the police impounded it. Mr Gyimah said that the police had been inside the car and must have closed the window. There is no evidence to contradict this testimony. His Honour does not appear to have had any regard to it.
144 As regards the weather shield, the photograph does not indicate that it was a substantial barrier to any person wishing to put his head through the open window. Moreover, the proposition that Mr Martin could not have put his head and upper body into the car because of the weather shield was not put to Mr Gyimah, or anyone else. In the circumstances, it was not open to his Honour to reject Mr Gyimah's evidence on the basis of the existence of the weather shield.
145 Demeanour alone, in the present circumstances, is not a satisfactory ground for rejecting Mr Gyimah's testimony. There are several pieces of objective evidence that had to be weighed in the balance as well.
146 Nield DCJ (in para (9) of [104]) did not accept Mr Gyimah's evidence that he used his left elbow to hit Mr Martin's chest to force Mr Martin to let go of his neck. His Honour said that it would have been impossible for Mr Gyimah to do this and also drew attention to the fact that Mr Gyimah did not mention using his left elbow in his handwritten statement to the police.
147 I accept that it would have been more likely for Mr Gyimah to have used his right elbow, but I do not regard the use of the left elbow as impossible. It is common ground that Mr Gyimah was a relatively small man and he may have been able to manoeuvre his body to use his left elbow. He may have used his right elbow. I do not regard Mr Gyimah's statement that he used his left elbow to ward off Mr Martin as being of any particular significance in the case. For this reason I do not regard his omission to mention the use of his left elbow in the statement he prepared for the police as being of any moment.
148 Finally, Nield DCJ (at para (10) of [104]) refused to accept Mr Gyimah's evidence that Dr Raman interfered with his attempt to move the gear lever because "having seen Dr Raman giving evidence, I do not believe that he would have acted in a way that might have endangered the lives of [Mr Mackay, Mr Barrett, Mr Martin, Mr Gyimah and himself]". Whether, on Mr Gyimah's version, Dr Raman would have known that he was endangering lives is open to question. My comments about demeanour-based findings apply again.