"The judge in care proceedings must never forget that today's medical certainty may be discarded by the next generation of experts or that scientific research would throw a light into corners that are at present dark." 54. This principle, inter alia, was drawn from the decision of the Court of Appeal in the criminal case of R v Cannings[2004] EWCA 1 Crim. In that case a mother had been convicted of the murder of her two children who had simply stopped breathing. The mother's two other children had experienced apparent life-threatening events taking a similar form. The Court of Appeal Criminal Division quashed the convictions. There was no evidence other than repeated incidents of breathing having ceased. There was serious disagreement between experts as to the cause of death. There was fresh evidence as to hereditary factors pointing to a possible genetic cause. In those circumstances, the Court of Appeal held that it could not be said that a natural cause could be excluded as a reasonable possible explanation. In the course of his judgment, Judge LJ (as he then was) observed: "
"Where the prosecution is able, by advancing an array of experts, to identify a non-accidental injury and the defence can identify no alternative cause, it is tempting to conclude that the prosecution has proved its case. Such a temptation must be resisted. In this, as in so many fields of medicine, the evidence may be insufficient to exclude, beyond reasonable doubt, an unknown cause. As Cannings teaches, even where, on examination of all the evidence, every possible known cause has been excluded, the cause may still remain unknown." 56. In Re R, Care Proceedings Causation[2011] EWHC 1715 (Fam) , Hedley J, who had been part of the constitution of the Court of Appeal in the Henderson case, developed this point further. At paragraph 10, he observed, "
“C2’s Dad waited outside the office whilst a meeting was taking place. Dad is outside on the phone to mum. C2’s dad informed mum if he does not get any information within 10 minutes he will go through the doors himself. He explained whilst being on the phone that if XX [teacher] has anything to do with it he will kick off massively. He said quote “it’s funny how we had a meeting and not this has come about”