"Those juvenile convictions of behaviour when the defendant, David Turnbull, was 15 or 16, in my view do not provide substantial probative value in relation to an important matter. They may provide very limited probative value in that they may have been, in 2001, a predisposition to violence on behalf of this defendant, but bearing in mind the nature of those convictions, the age of them, in my view they do not now provide substantial probative value in relation to that important matter -- that is to say the predisposition to violence."
"If you think that it was perfectly understandable in the circumstances for him not to proffer any plea to section 20 at that time, then that would not be evidence regarding any possible reluctance to accept responsibility." 18. "
"What of the matter though that he has admitted unlawful violence because of the guilty plea to count 2? As you know, his primary defence is a denial that he had any intent to cause grievous bodily harm when he acted in the way that he did. What you need to consider, members of the jury, is: does the admission, the guilty plea to count 2, show a propensity to use unlawful violence that night to the extent claimed by the Crown when the Crown say, yes, you can take that into account to show that he would use unlawful violence to the extent of intending unlawful violence. Again, members of the jury, that is a matter for you to decide. Take account, of course, of the fact that he was prepared to admit what he had done, amounting to an offence on count 2; take account of what he has said in evidence about that aspect. The guilty plea on count 2 is only part of the evidence in this case, and it is important it should not be exaggerated. It does not follow that just because he agrees he used unlawful force sufficient for an offence under section 20, count 2, that he had the requisite intent to cause really serious injury, which is the allegation in count 1. As I say, it is just part of the evidence, and you must consider it as just that; part of the evidence, and consider it in the light of all the evidence. But a guilty plea on count 2 clearly does not prove that the defendant is guilty on count 1."
"In criminal proceedings evidence of the defendant's bad character is admissible if, but only if -- .... (e) it has substantial probative value in relation to an important matter in issue between the defendant and the co-defendant."
"39. We conclude that the term 'substantial probative value' must mean that the evidence has an enhanced capability of proving or disproving a matter in issue. While preferring not to find terms synonymous with the statutory language, Hughes LJ in Braithwaite, at [15], pointed out that what needs to be borne in mind is the distinction between simple relevance and substantial value ...." "40. The term 'more than trivial probative value' is, in our view, capable of being misleading and we note that in neither Lawson nor Braithwaite did the court attempt to improve on the statutory language. If by the term evidence of 'trivial' probative value is meant evidence which is barely probative, we think the term 'substantial' may be deprived of its intended statutory meaning as requiring evidence which is more than merely probative/relevant. We do not doubt that the court in both S and Aphabhai had no intention of diluting the statutory threshold. It is important, in our view, that the threshold for admissibility is not understated." "44. The judge is, as we have said, required to evaluate the capacity of the evidence to establish the relevant propensity. Where there is already before the jury evidence which has the same probative effect, the judge is entitled to assess whether further evidence has substantial probative value in relation to the same issue. A judgment may be required as to whether, in the light of 'more probative evidence already before the jury' (per Hughes LJ at [43] above), the further disputed evidence has substantial probative force. Mr Carter-Stephenson argued that any evidence which is capable of proving the relevant propensity is admissible provided that it possesses the quality of substantial probative value, whether or not there exists other evidence in the case whose value is to the same effect. In our view, Mr Carter-Stephenson's argument begs the question whether evidence is substantially probative of the matter in issue between the defendants."