“[…] what Dr Barnes can’t exclude though, because it would occur without leaving any signs, is a swelling caused by a blow of some kind or other, a swelling from a heavy blow can come up very quickly and then will subside over just a few days. It will not leave any visible sign of its former presence, though in some, but not in all cases there can a thickening of the underlying tissue which can be felt, although there remains no visible sign of the former swelling. There wasn’t any thickening of that nature in this case but, as Dr Barnes said, that doesn’t exclude the possibility of there having been some sort of blow, a large lump and then quickly going down again. So the medical evidence doesn’t show the defendant can’t have had a lump on his forehead …”
“[h]aving worked on a number of these types of cases over the years, I have to say that my expectation of finding detectable levels of the offender’s DNA at the outset would have been low. In my opinion, at this juncture it remains quite plausible that the attacker transferred little or no DNA to the C’s clothing during the commission of the offence and that the DNA from the unknown male is not crime related.”