DS 'Stan' Jones took possession of silencer (1) from the scene along with three other exhibits, all marked SBJ/4, SBJ/3, SBJ/2 and SBJ/1, and Pargeters silencer (1) was that silencer. DCI 'Taff' Jones knew all about the find of Pargeters silencer (1) and the other DS Jones exhibits (SBJ/4, SBJ/3 and SBJ/2). He knew this was the silencer (1) which had been sent to the lab' on 13th August 1985, and he knew all about DI 'Ron' Cooks experiments and dealings with that silencer (1) during that 18 day or so period - he knew it was a different silencer to the one found by the relatives, and 'Taff' Jones did not like the relatives, he did not trust them, and that was one of the reasons why he held onto the second silencer (2) which he kept on his desk until PC Whiddon came along, and so on, and so forth...