Lets approach this little mystery from a different angle...
We have only 9 bullet cases present in the main bedroom right up until 11th November 1985, when the Operations Manager (OM), decides to vacate four exhibit references relating to four items of evidential value, namely by altering items DRH/1, DRH/2, DRH,3, and DRH/4, into DRH/50, DRH/51, DRH/52 and DRH/53, so that the Operations manager can introduce four additional bullet cases into slots left vacated by the switch aforementioned...
How was it possible for Ralph Bamber to have been shot four times whist he was present in the bedroom, if June Bamber had been shot seven times there, and there were only 9 bullet cases originally found in that vicinity?