As I say, there simply was insufficient detail produced from the examination of the flake from the silencer, to justify John Hayward staking the claim that the basic four blood group results, were unique and exclusive to Sheila Caffell. Worse yet, because of such a misleading claim the prosecution was able to rely upon the suggestion that the silencer in question must have been fitted to the barrel of the rifle that fired the fatal shot which killed her, and that she could not have removed the silencer, which contained her unique and exclusive blood, from the barrel of the gun, and transported it downstairs to hide it in the so called gun cupboard - but it was all part of a dishonest deception, based on a claim John Hayward was not entitled to make on the back of such basic blood group activity...