But if the gun had been moved from the kitchen to be then photographed on Sheila, then wouldn’t that detract from the prosecutions case that JM had staged the suicide?Not evidence as such. The gun was photographed on Sheila's body and removed at 11:10am and given to PC Hammersley (SOCO). In 1991 another SOCO at the scene, PC Davidson stated to the COLP inquiry that he saw the gun in the kitchen and SOCO entered the house around 10:30am, three hours after the raid team. Around 40 officers entered the property during the course of the day so it has to be questioned whether the gun was moved around or there could have been two guns. PC Davidson (SOCO) reported the gun in the kitchen as damaged and the gun on Sheila was also damaged at the butt corresponding to a splinter of wood in the kitchen. Unfortunately PC Davidson (SOCO) doesn't put a time on when he saw the gun in the kitchen and the gun removed from Sheila was taken downstairs by PC Hammersley (SOCO).
PS
PC Hammersley also made a statement to the COLP but I can't find a transcript of his interview online.
However, if the gun was found in the kitchen then taken upstairs to be photographed on Sheila's body, then that is more indicative of staging a scene with Sheila as a suicide rather than trying to frame Jeremy for murder.