I'm quite baffled by Jeremy's stance re these appeals. He seems to concentrate on minor issues really.
Let's just say for a moment that he's innocent. In that case, he must think the evidence was tampered with, it must have occurred to him that the silencer evidence was fake, and he knows that Julie was lying about some things at least. Why isn't he concentrating on those things? He did accuse his cousins of planting evidence, but it was a bit half hearted. Does he really think that Sheila did use the silencer and put it back in the cupboard?