The key to the undoing of the dodgy silencer evidence, was the fact that relatives did not find two separate parker hale silencers (SBJ/1 and DRB/1), one month a part. They only found one (SBJ/1) on the 10th August 1985. 'Ron' Cook fucked up the evidence, by exposing that silencer and any blood or paint in it, or upon it, to the harmful fumes of superglue treatment on the 15th August, 1985. The relatives didn't find the second parker hale silencer (DRB/1) on the 11th September, 1985, they handed it over to police on that day. That's how the decoy silencer got introduced, it was needed as an uncontaminated carrier of the uncontaminated flake of blood. It was not workable to use the contaminated silencer (DB/1) as the carrier of the uncontaminated flake of dried blood, cops needed an uncontaminated second silencer, and the relatives duly provided them with DRB/1...