There were gaps in that theory - what if a nurse had re-fed the baby 40mls after the projectile vomit to ensure it had milk?
There would be a record of the feed.
And from what he said (or avoided saying) it was more or less guessing that the others had air embolus, because they had a bluey coloured rash.
As I understand it, it was a rash that came and went in different parts of the body quickly, as the air temporarily oxygenated blood cells it came in contact with. That isn't what happens with sepsis. Sepsis would also cause other symptoms.
From what I saw, they didn't really have a case against her until the insulin aspect - but there was no proof that the babies had actually been injected with any insulin - the drip bags weren't tested and nobody saw anything. The Mother of one of the babies was diabetic and on insulin............I don't know enough about it but there are various reports that there are other causes of high insulin being found without it being injected (sepsis being one of them).
The blood samples from the two babies concerned shoed very high insulin levels and very low C-peptide levels. If the insulin occurred naturally, C-peptide levels would have been high. It was accepted that this could only have been synthetic insulin.
If there were issues with waste water and nurses were washing their hands from the taps they could have been transferring pathogens to the babies.
That would show up in blood tests.
The prosecution case was all based on Dr Evans findings and the note. The note is another topic but I do think it sounded like someone in distress at what she was being accused of and bits were taken out of context.
Not only Dr Evans.
I'm not sure what she was supposed to be found lying about other than being in a tracksuit rather than pyjamas but that sounds a bit flimsy too.
There were a number of other points, for instance that her evidence on whether she was in the vicinity of the babies at relevant times was at odds with other records such as when she swiped in and out and when medical notes were made on the computer; her evidence about being able to see from the door that a baby was pale when the baby was in the dark whilst LL was coming in from a brightly lit corridor, and the baby's face was obscured by a cover over the cot; her statement that she didn't get rid of the confidential notes she brought home because she didn't have a shredder, when in fact she did.