So much confusion over the blood in the silencer, even amongst the experts, that the jury simply had little chance of understanding it
Prosecutions blood Expert, John Hayward, misled the defense expert, Professor Lincoln, into believing that the small flake which was found inside the baffle plates, was made into one solution, which in turn was separated into five separate lots, and each lot tested for a specific blood group activity? Possible errors could have been made adopting this process...
Later, it turns out that Hayward, broke small flake up into five separate pieces, and made each into a solution, which was tested for individual blood groupings. This too was subject to possible errors in the typing process adopted...
Worse still...
It turns out that before Blood Expert could accept a result obtained during the testing of these solutions, that two independent results had to be obtained from the examination of the solution, before FSS could accept a particular result - yet, this was only achieved in one (EAP BA) of the tests, for four of the obtained blood group results...
Three of the blood group tests (HP2-1, AK1-1, and A), could not be, and were not confirmed by second tests, yet the blood expert included them in the collection of blood group results, (A EAP BA, AK1 and HP 2-1), which enabled him to claim that four confirmed blood groups had been found to be present inside the silencer (Flake) when as it turns out, there were only one confirmed result ( EAP BA - where a second result was obtained through testing the same solution on a second occasion)...
What becomes apparent from all of this, is that the blood results obtained from the examination of the flakes solution, was not unique or exclusive to Sheila Caffell, as alleged by the prosecution, and its experts, at the time of Jeremy Bambers trial...
The solitary blood group, (EAP BA) which were successfully double tested, could have originated from Ralph, and or June Bamber, or both...