S o, whichever way you look at the scratch mark evidence, was it / they made by the end of the guns barrel, or the silencer, or both?
If both, which marked the aga surround first, the guns barrel, or the silencer?
Both the guns barrel, and the silencer, could not have made the same mark on the aga...
So police got rid of the fact that on 7th August 1985, DS Jones sseized exhibit SBJ/1 (silencer) at the scene, because by 8th August 1985, paint had been found on the end of a guns barrel (metal end cap - court exhibit 49), and Cook had taken a paint sample, RC/1, from the aga that date, and handed it to DS Davidson whilst both were at the scene. Police must have been satisfied on 8th August 1985, that the end of a guns barrel had made any mark on the aga surround, not a silencer, because on and by evening of 9th August 1985, DS Jones had returned the silencer back into the gun cupboard, acting on instruction of DCI Jones...