The flake of dried blood which David Boutflour scraped off the sound moderator, seems the most likliest source for a similar flake of blood found trapped between baffle plates when the ballistic expert Fletcher dismantled the sound moderator at the Lab' on the 12th September 1985 (a flake of dried blood which when analysed by the blood expert John Hayward, produced the key blood group evidence, A, EAP BA, AK1, and HP2-1, which the prosecution attributed exclusively to Sheila Caffell...
We all know that Robert Boutflour had the same blood groups as Sheila, but that the prosecution and its witnesses played down this possibility!
The evidence concerning the flake of blood which David Boutflour scraped from the silencer, only came to light when the COLP investigators interviewed him in 1991. But he told them that Essex police knew about what he had told COLP what he had done, without him sayi g what had happened to the flake of blood he had removed from the silencer! However, if Essex police had been told about what he had done, surely they would have asked him where that flake of blood was, or what he had done with it..
The really worrying aspect of this matter, was that there is no mention of this activity of David Boutflours was made in any disclosed witness statement made to Essex Police, or made by Essex police on his behalf!
Well, this information was capable of excluding the silencer evidence, on the footing that David Boutflour tampered with the integrity of it, when he scraped blood from it!
Essex police kept silent about what David Boutflour told them what he had done!
I find this approach of Essex police in this matter to be unacceptable, the court which tried this matter ought really to have been availed of the fact that Boutflour had tampered with blood on the silencer, entitling the defence to put forward the claim that blood group evidence attributed as having been found inside the silencer trapped between two baffle plates had in fact been originally present on the outside of the silencer. Its presence had been transferred to the inside of the sound moderator so that the ballistic expert, Malcolm Fletcher could postulate his ' backspatter' theory!
David Boutflour needs to be arrested and questioned under caution, so that all the facts concerni g the date and time he used that razor blade to scrape the dried flake of blood from that silencer. Where he was at the time he did it? Who else was present at the time he did it? What he did with the flake after he removed it? Whether he told police and which named police officers were notofied, and whether he handed it to them !