The mystery is obvious - how was any of this decided?
The conclusion reached here is that Dr Evans was acting in good faith. And maybe he was. But we don’t know how he ‘sifted’ the cases, do we? We can’t conclude there was or wasn’t impropriety because we don’t know how this sifting occurred.
We *do* know he was being paid by police - that’s perfectly normal, of course, but would that have prevented him from pointing to any incidents or deaths that might’ve been favourable to Letby’s defence?
If he was a scrupulously honest actor then the answer would be ‘of course not’, but then we know the good doctor
isn’t a scrupulously honest actor. This is why the suspicion lingers that cases were ‘sifted’ until the point that only those which coincided with Letby’s presence on the ward remained.