Picking up an animal gets blood on your hands and thus blood can be transferred to the weapon by touching it or even putting it down in a place where animal blood was. Removing the moderator with animal blood on your hands is enough to transfer it.
At any rate I still have not seen any documents that indicate animal blood was found on the weapon or moderator. Let's start with the supposed evidence to see if there really was any animal blood or there is no point in further discussion even. The lab notified the police on 8/14/85 they found human blood and paint on the moderator nothing about animal blood. Nor has animal blood been mentioned in any court documents. The post conviction analysis done by "Justice for All" doesn't mention animal blood being found. So where is the source for this claim.
80. It is submitted that Glynnis Howard at Huntingdon Forensics was in receipt of sound moderator SBJ/1 on 13th August 1985. While David Boutflour asserted that the sound moderator he had discovered had paint and blood on it.
81. Glynnis Howard at trial, describes her removing blood. She never stated that she had tested the moderator for paint, instead she had discovered both human and animal blood on the moderator, (see document S10).
82. Indeed COLP found that Glynnis Howard was instructed by DI Cook, ‘basically to look for blood on the silencer, (and rifle),’ (see COLP Allegation 2, paragraph 2.53, 001917), thereby implying that the paint was not tested due to it not being in issue.
I think you owe me an apology.