It would prove there was blood on her hands, It is very significant because the Jury were told her hands were clean. It also heavily damages the pathologists credibility as a whole who told them they were clean.
It will also prove her bloody hand made contact with PSAMS 51-55 This is even more significant because they contain the passages.
"Have mercy upon me, O God"
"Deliver me from bloodguiltiness O God, thou God of my salvation"
"My heart is sore pained within me: and the terrors of death are fallen upon me"
It can also be demonstrated that Sheila placed her hand there while she was alive.
It was June's Bible. June and not Sheila would have been the person to have known that particular passage,not Sheila because she wasn't religious. I can't stress this enough that Sheila wasn't into religion--------it was her mother who'd indoctrinated it into Sheila from her childhood days.
Sheila had always done the opposite to what her mother wanted of her and it was only latterly as Sheila's illness had taken a hold that she tried to please her mother in her own way by " finding God ",but I doubt that she knew one Scripture/Psalm/Verse from another when it came to the Bible so no way would Sheila have known to have opened it at those particular pages.