The cynoacrylate fuming of the so called silencer took place on the 23rd August, 1985, by Ron Cook. This was around 21 days before the blood sample (no exhibit reference) was taken from the silencer, on the 12th September, 1985. This is important because, if there was only one silencer, then it was exposed to superglue fumes, before the blood was removed from it three weeks later. This is very interesting because in a police memo sent by Ron Cook, to DCS Mick Ainsley, Cook draws attention to the fact that it was a scientifically established fact that exposure of blood, and other bodily fluids to cynoacrylate fumes produces harmful/adverse affects in the grouping process. Cook was at pains to mention, however, that this did not apply in this instance, since the key blood group evidence was obtained from the silencer, before its exposure to superglue treatment. But, fact of the matter is that, if there really only was one silencer, then it was most definitely exposed to superglue fumes beforehand. In which case, it rendered the blood grouping which took place afterwards void because scientists knew that in such circumstances, harmful/adverse affects would result...
Therefore, this raises questions regarding a possible deception carried out by Ron Cook, and DCS Mick Ainsley, as to whether they told the truth regarding at which stage the silencer had been exposed to the harmful superglue fumes...