I have asked Reader to clarify, he/she didn't (sorry Reader, not sure if you are male or female?). Reader suggested that Jeremy wouldn't have left a body so obviously staged - so who would and why? Really not trying to be difficult and I am willing to take on board any suggestion as long as it's seems rational. Not knowing who Reader thinks staged the body makes this scenario confusing.
I think Reader is female. I cant post for Reader - but my own opinions are as follows.
In light of the errors / complications within the TFG operation inside the farmhouse, the police made a decision that the case would be swiftly dealt with by a coroner's inquest; as four murders and one suicide. It would in-effect be 'done and dusted' (so as to bury the errors etc.).
Since the police already knew who was culpable for the killings (on account of the events from the 3.55am recce on-wards, up to and including the operation) there was arguably less need to preserve the crime scene. Due to the errors / complications, it was probably decided there was
even less need to preserve the crime scene!
The so called staging of SC was carried out by police - who were to some extent 'governed' by the nature and circumstances of Sheila's second shot.
This next bit is a real difficult one. At present, I personally don't think Sheila shot her self a second time. I think she simply collapsed upstairs and I think one of the .22 weapons was discharged accidentally by police, when it was mishandled while they were trying to figure out what to do (about the fact she had gotten upstairs with the first gunshot wound). The second discharge caused police to place Sheila in the recovery position - which is why the large blood stain on the carpet exists. It really couldn't have got much worse for them.
In the crime scene photography (which was never meant to be scrutinised to the extent that it has been) it is clearly noticeable that somebody has tried to cover that bloodstain with the bible. This can only have been done for the purpose of crime scene photography.
Jeremy Bamber had no motive to attempt to cover a distinctive bloodstain.