Dr Evans said he used the Differential Diagnosis method which is not just having different possible diagnosis of equal probability.There’s loads of reasons for air in the body after death, unless the prosecution have something to clearly indicate air embolus then I’m really not sure what the defence need to say, saying something is possibly the cause is a long long way from proving LL deliberately did anything,
3/5 is not quite the case either she’s said to have attempted to murder some of these children on more than one occasion bringing the strike rate implausibly low, the study shows 1 survivor out of like 50, and they were the only one diagnosed at the time of it happening, which obviously increased the chances of survival, 3/5 is still pushing it if you ask me,
And the x ray, are you talking about the one that shows air near the spine? If so as I said there’s plenty of ways we’re being told air can be found in the body post mortem
It is using a process of elimination, using further tests and information as necessary, to arrive at a conclusion.
I very widely used method.
Differential diagnosis - Wikipedia
en.m.wikipedia.org