if you go to the search button you can enter fletcher - and sort by relevance. Mike says he has his working notes. On thing I don't understand is why if they swabbed the baffles and there was considerable blood did they only test one flake - and how was the flake there when fletcher had already taken the silencer apart.
They initially did multiple tests to determine whether the blood on and in was human. Subsequently when they did the blood grouping test they didn't test only 1 flake. They did 2 blood grouping tests. They tested blood from the upper baffles and then the flake. The test of the upper baffles was group A but had no enzymes. The flake was group A and also had the AK1 enzyme. In THEORY the blood on the upper baffle could have belonged to either June or Sheila because they both had group A blood. Of course for it to be June's that requires June to have suffered from a contact shot that resulted in drawback which the experts said they didn't think happened. June has a different enzyme than was found in the flake while Sheila has such enzyme. So while in theory the blood from the upper baffles could be from either June or Sheila the flake could only be from Sheila. That is why the flake was concentrated on and so much more significant than the blood on the upper baffles. That is why the blood on the upper baffles is not mentioned much.
From the 2002 COA decision:
"No questions were asked at trial of Mr Hayward to establish what part of the blood he had tested. The position was, however, known to the defence through their own expert Dr Lincoln. Dr Lincoln had seen the evidential material upon which the group testing results were based and agreed with the conclusions. He recorded that evidence in the course of his report of 19 September 1986. He said that Mr Hayward had "found a flake of blood trapped under the first or second baffle plate" and that it was this flake that was tested and produced the groupings A, EAP BA, AK1, Hp2.1 upon which reliance was placed by the prosecution. Dr Lincoln further recorded:
"Mr Hayward states that he could detect visible staining on the "upper baffle plates" and that he swabbed these plates so that the blood was taken onto cotton material which could subsequently be used in grouping tests. On this material Mr Hayward successfully determined the ABO and EAP groups and showed the blood to be groups A, EAP BA."
This finding from the swabbing of the upper baffle plates was thus consistent with blood from either June Bamber or Sheila Caffell or even a combination of blood from the two of them but not in any way from blood from Nevill Bamber or Nicholas Caffell."
As for the flake it was not a loose flake that was floating around the blood dried into a flake and was stuck to the metal till removed.
