It is a great leap of faith to try and suggest that the human blood detected in the silencer which Ron Cook marked as exhibit SJ/1 when he took it along to the lab' on 13th August 1985, for Glynis Howard to examine, and to say without any evidence whatsoever that the blood she refers to as being human, was in fact the same blood which between 12th and 19th September 1985, produced distinctive blood group activity of A, EAP BA, HP 2-1, and AK1, from inside a totally different silencer...
To begin with, the silencer (SJ/1) which had its exhibit reference altered into SBJ/1, because of a misunderstanding between Ron Cook and Stan Jones regarding the fact that Stan Jones had got a middle name (Brian), was not the same silencer which police sent along to the lab' on 30th August 1985 (DB/1), inside which the crucial key blood group evidence was detected between 12th and 19th September 1985. Silencers, SBJ/1 and DB/1 were completely different silencers to one another, easily distinguishable one from the other by the consecutive lab' item numbers of 22 and 23...
The same silencer could not possibly have had two different lab' item numbers...
Human blood was found in silencer 22, and the key blood group evidence, A, EAP BA, HP2-1, and AK/1, was foubd inside silencer 23...
The silencer relatives handed over was 22, which went to the lab' twice, once on 13th August 1985, and secondly, on 20th September 1985...
What this tells us in the clearest possible terms imaginable, is that between 13th August 1985 and 20th September 1985, the silencer handed to police by relatives was not present at the lab, so obviously the key blood group evidence cannot be physically linked to it (22)...
Police and prosecuting authorities have used the various exhibit references (SBJ/1, DB/1 and DRB/1) in order to try and confuse everybody into believing these all related to one silencer, but in fact there were at least two key silencers, (22 and 23) as described, with others thrown into the melting pot for good measure...
But, what they did, has now become exposed...