The defence case is that Mrs Bamber sustained 8 gunshot wounds: 7 entry wounds, 3 exit wounds and 1 non-penetrating wound. This is based on the pathological evidence that the gouge mark to her chest could have been caused by a non-penetrating wound independent of all others.
The above is supported by bullets found in the bedroom: DRH 35 x 2, DRH 5 and DRH 9: 3 from the exit wounds and 1 from the non-pentrating wound. And casings: DRH 3,4,6, 7 x 2, 8, 10, 11, 12, 13, 14 and 43: 8 x gunshot wounds Mrs Bamber and 4 x gunshot wounds Mr Bamber.
The prosecution case is that Mrs Bamber sustained 7 gunshot wounds: 7 entry wounds and 3 exit wounds. This is based on the pathological evidence that the gouge mark to her chest could have been caused by a bullet richochet from one of the other wounds.
The above isn't supported by the bullets found in the bedroom since four were found and the above scenario only requires 3. It also means there's 1 casing too many. Unless you buy into the theory that the rifle malfuntioned as Bamber was walking up the stairs and he ejected a casing on the landing or someone inadvertently carried it upstairs under foot or on clothing. These explanations account for only 3 casings found in the kitchen when Mr Bamber clearly sustained 4 gunshot wounds there.
The most straightforward explanation is that 1 casing (about 5mm x 5mm) was lost in the kitchen. Mrs Bamber sustained 8 gunshot wounds: 7 entry wounds, 3 exit wounds, 1 non-penetrating wound with the four bullets relating to her gunshot wounds. 11 casings found in the bedroom and 1 on the landing relate to Mrs Bamber's 8 wounds and Mr Bamber's 4 wounds.
Obviously I have not included the 2 casings found near Sheila's head as these clearly relate to her 2 gunshot wounds.
