Stepping Hill Hospital case
The Stepping Hill Hospital case (Chua) is interesting.
The CPS originally blamed one nurse - then dropped the charge and blamed another, who was convicted.
But there was hard evidence, in that case, of tampering with IV bags and saline vials, which tested positive for insulin. The case then relied on staff rota and an alleged confession note.
There were two murder charges and 19 charges of harm through insulin.
Compare to the LL case.
No direct evidence of insulin in any TPN bags. Only two mixed cases put forward. There does not appear to be any discussion of how common hypogycemia is in neonates, or any attempt to rule out other causes of hypoglycemia. Theories were put forward as to how multiple TPN bags were spiked that contradicted other evidence. There does not appear to be a warning, by the judge, of the possibility of errors in lab testing, or potential failures in the chain of custody for the specimens.
But, in addition. there are many other possible suspects, if we limit ourselves to the two insulin cases, one of which has a 0.3 ratio of C-Peptide/Insulin.
I'm hoping the defence can appeal the insulin charges, although at present I'm not sure exactly how they would structure that appeal, especially if they don't have access to specialist expert opinion (if this is required).