"So in terms of what you heard from this witness, the taxi driver, clearly he gave an account in his oral evidence to you that there had been three blows, and in his statement he said that there were two. You need to appreciate that the account given in his statement also forms part of the evidence in the case. You are not bound to accept either account, but, if, in any respect, you conclude that his written statement is accurate and his oral evidence is not, then you may act upon the statement in preference to his oral evidence. It is a matter for you to assess."