The creep should be beaten to death in a public place.
The crap he spouted would have shamed a teenager doing the dumbed down A level maths. Doctors are required to study stats, and a big part of medical research is based upon this sort of maths. He cannot possibly have been ignorant of the thruth.
He said that the probability of the two events was >70 million to one. For a start that means there's around 50/50 odds that we find one in Britain.
(around 0.48 ish if you care)
However his "logic" was that the two events could only be linked by malice given the huge odds he cited.
Anyone with any training whatsoever in stats will say instead that this is good evidence of a common
factor.
There are piles of possible such factors.
First they were siblings, and it's hardly unlikely that there is at least some genetic link.
We know of several good correlations with environmental conditions; temperature, and of course allowing nicotine addicts into your home.
The fault is also with the defence. Being arts graduates this analysis will almost certainly would not have occurred to them, so they didn't bother to hire their own expert witness to shoot holes in this arrogant shit.
The GMC being mostly doctors would have known that he had lost a large % of his medical training, or colossal arrogance had caused him to get someone locked up and her family ruined.
Of course she may be guilty, I don't know.
Thus his neligence has either caused an innocent woman to be locked up, or a double child murderer to be freed.