With this in mind, how could anyone realistically say that the AK/1 blood enzyme which formed part of the loose flake found in the silencer be human rather than animal, or vice versa?
It simply is not possible to differentiate between the AK/1 blood enzyme found in animal or human blood - here lies the problem regarding blood group results relied uoon to convict Bamber of these murders ...
The prosecutions blood experts who testified, deliberately failed to mention in any report the presence of animal blood found on and inside the silencer, because they realized that to do so woukd be harmful to the proposition that blood found in the silencer was unique and exclusive to Sheila Caffell, since the only part of the result obtained from examination of the flake, which made the case for it to be Sheila's blood was the AK/1 enzyme, belonging to animal and human blood, if for this reason the AK/1 enzyme has to be excluded, it produces a collection of results (A, EAP BA, and HP 2-1) that are therefore not exclusive or unique to Sheila, it makes it even more likely that the blood found in the silencer in the form of the loose flake, to be an intimate mixture of the parents bloods, to a far greater extent than was acceptible at trial...