The CCRC were underestimating the possibility of contamination. The commissioners had either not seen or had ignored a note recording that the sound moderator had been fully dismantled on the 29th April 1986, under conditions that could have caused accidental transfer of DNA.They ignored or were unaware that the sound moderator might have been dismantled by the jury at the trial judge's invitation. The commissioners did not understand the way that DNA profiling tests had been carried out: pooling possible DNA-containing materials from mulitiple baffles at different depths in the moderator. They discounted the significance that no blood had been detected on and in the moderator when it was examined before the DNA profiling and the advice of their experts that the DNA could not be implicitly linked with blood.
The biologist removed the blood in 1985. How could taking it apart after the blood was scraped off impact the blood that had already been scraped off and analyzed?
By the way it was defense expert Lincoln who took it apart in April 1986 and he microscopic drops of human blood on the first 8 baffles: "The first eight plates all gave weak or very weak positive reactions for blood. The other nine plates "did not produce any evidence for the presence of blood". He agreed with Mr Hayward's conclusion that the combination of blood groups revealed in his testing of the inside of the moderator could have come solely from Sheila Caffell but did not come from any one of the other individuals...
Some of the blood he agreed could not come from any other individual other than Sheila was blood removed by the prosecution from the upper baffles:
"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."
Because he agreed the blood found on the baffles and the flake of blood scraped from between the 1st and 2nd baffle was from Sheila the defense did not use him at trial.
It is not enough to suggest the flake of blood was not an intimate mixture it also must be established that the blood found directly on the baffles was not intimately mixed to argue it was June and Nevill's blood.
