“Mr Worsley in his opening speech to you before he called his client to give evidence said that he hoped that you wouldn’t take the view “like father, like son”
“You have told us about particulates; the barium and the aluminium. You told us about the glass that was found. Can you answer this yes or no. Can you as an expert say that the presence of the particulates, barium, aluminium and the fragments of glass make you scientifically certain that the mask was worn at the scene of the robbery”