I ain't finished yet...
Police action report (15/20) David Boutflour contacts the police with a telephone message stating that he has found a silencer with blood on it...
How utterly strange that Boutflour is contacting the police saying he found a silencer in the gun cupboard on 11th September 1985, when the silencer being spoken about had already been sent to the lab' (on 30th August 1985) in the guise of exhibit reference DB/1, and on the very day that the ballistic expert, Malcolm Fletcher is dismantling the said silencer at the lab' (11th September 1985) and finding the crucial flake of blood (Sheila's blood by all accounts), Boutflour is reporting the find of the silencer which had got blood on it...
It's a bit late in the day to be reporting the find of the silencer (11th September 1985), a month after you supposedly found it (10th August 1985), don't you think? Even more bizarre that on the very same date (11th September 1985) that his sister Ann Eaton is handing over a silencer to DC Oakey...
So, silencer which got sent to the lab' on 13th August 1985, had an exhibit label which had only got DI Cooks signature upon it, so how come the lab' accepted such an exhibit purporting to have been found by David Boutflour, yet on the day it gets sent to the lab' it doesn't have an exhibit label attached to it bearing Boutflours signature on 13th August 1985, would the lab' accept such an exhibit that is not properly labelled and packaged? Worse still, by the time the same silencer gets sent back to the lab' on 30th August 1985, under the guise of exhibit DB/1, there can still not be any signed exhibit label bearing the signatures of David Boutflour or Ann Eaton, because David Boutflour has not yet reported finding the silencer to the police, and he would not do so until 11th September 1985. Furthermore, his sisters signature (Ann eaton) could not be on the silencer sent to the lab' on 30th August 1985, because she did not hand the silerncer in question to DC Oakey until 11th September 1985...
A silencer sent to the lab' on two other occasions (13th August 1985 and 30th August 1985) before 11th September 1985, when David Boutflour contacts the police to tell them that a silencer has been found with blood on it, and his sister Ann Eaton hands over a silencer to DC Oakey - so we can correctly assume that the silencer found by David Boutflour, as per his message passed to the police on 11th September 1985, was the very same silencer which his sister Ann Eaton handed over to DC Oakey that same day, and the silencer which is already at the lab' (DB/1) could not be the silencer which had Sheila's blood inside it, and be the Bamber owned silencer that David Boutflour found, and his sister handed over to DC Oakey, on 11th September 1985...