37 I accept that the complaint made in this ground is correct, in the sense that the State did not rely on the father's opinion, but on what he saw and heard; likewise, the jury could not reason from the father's opinion, but from what he said he saw and heard. However, it appears to me that his Honour would clearly have been understood by the jury as using the expression contained in the passage quoted above as a shorthand way of referring to the entirety of the father's evidence about this incident, which was relevant for the purpose contended for by the State. In my view, his Honour was doing no more, and would have been understood by the jury as doing no more, in the passage referred to, than referring the jury to the whole of that evidence, and explaining that it was the State's submission that it could be used for the purpose referred to. The error is one of expression, not of substance, and, in my view, ground 3 is not made out. If it had been made out, I would have been of the view that no substantial miscarriage of justice was occasioned thereby.