We can see the police identified exhbits by officers' initials followed by a number eg DRH/1 denotes DC David Robert Hammersley with the 1 representing the first exhibit he seized ie the casing by Sheila's head.
When exhibits are then checked into the FSS they are given a new unique identifying number by FSS. In the case of the blue socks identified by PC David Bird the socks went from DB/6 (police identification) to 86 (FSS identification).
The socks were blood tested and found to match June's groupings all of which was adjudicated on at trial.
I don't see anything remotely contentious about the above?
So, here we have the opportunity to test the reliability and the integrity of the claim made by relatives, police and Home Office scientists, that there was only one silencer in the case, a silencer that was unique to the .22 semi-automatic Anshuzt rifle belonging to 'Neville Bamber' - Well, the silencer that went to the lab' at Huntingdon on the 13th August 1985, it had the exhibit reference 'SBJ/1' with the accompanying item number of 22. At that stage, no evidence was disclosed which identified the next item bearing no. 23, or by that stage the relevant exhibit reference, belonging to item no. 23?
We need to then take into account, that after the submission of the silencer ['SBJ/1'] item no. 22 to the lab' at Huntingdon, on the 13th August 1985 to be examined by 'Glynis Howard', it was returned into the possession of 'Di Cook' after the expert had carried out a brief examination of it, without noticing a significant amount of red paint, deeply ingrained into the knurled metal end cap of the silencer in question. Thereafter, we are being asked to believe that rather than return the silencer back to a police storeroom, confirmable by reference to a record document known as 'the storeroom register', a storeroom under lock and key, but that he kept the silencer, with a signed exhibit label bearing 'his own' and 'Glynis Howards' signatures attached to the said silencer, in his coat pocket. He kept 'it' there [in his coat pocket] for the next consecutive 17 days, without it being protected by any protective covering. Indeed, when 'Di Cook' arrived at the lab' [Huntingdon] on the 13th August 1985, that the silencer in question ('SBJ/1') item no. 22, which he handed over to 'Glynis Howard' that there was no protective covering in place upon and around the silencer. Pay attention to the fact that neither 'Di Cook', nor 'Glynis Howard' or any other person mentions such a covering when it arrived at the lab' and then left there after a brief examination on the same date!