I have no evidence Sheila washed herself ...
But it explains why she was clean ...
And it fits with the blood stains on Psalm 51 and the washing away of sin ...
I can see no reason for the Police altering the crime scene - but whatever they did for whatever reason I think that it is irrelevant to the case ...
It is possible DC Jones was the one to turn Julie initially on the suggestion of the relatives ...
I do not know much about DCS Ainsley's involvement - but it is very possible ...
I think you are right about Robert and Anne - I think she is very likely psychopathic - how could she have moved in the farm with her children ? - it is very far from normal behaviour and suggests psychopathy heavily to me - Robert convinced himself through fear, prejudice, greed and arrogance
Great post Roch - you have certainly given me food for thought 
Many people move into houses where people have been murderered or died; doesn't make them psychopathic for doing so.
At least if you are going to make these claims about AE, back them up with evidence.
There's nothing great about Roch's post or indeed posts; just yet more conspiracy theories.