“It is the local authority that seeks a finding that the injuries are non-accidental. It is for the local authority to prove its case. It is not for the mother to disprove it. In particular, it is not for the mother to disprove it by proving how the injuries were in fact sustained. Neither is it for the court to determine how the injuries were sustained. The court’s task is to determine whether the local authority has proved its case on the balance of probability. Where as here there is a degree of medical uncertainty and credible evidence of a possible alternative explanation to that contended for by the local authority, the question for the court is not has the possible alternative explanation been proved but rather it should ask itself in the light of that possible alternative explanation can the court be satisfied that the local authority has proved its case on the simple balance of probability.”
“bear in mind the rubric that today’s medical certainty may be discarded by the next generation of experts together with the hypothesis that causation must not be dismissed just because it is unusual. The Court must always exercise considerable caution when considering the significance of expert opinions, particularly where a condition or combination of conditions is unusual. Unusual, rare or unknown conditions do exist and it is sometimes not possible to identify what is not known or understood; what has been described in many cases as a known unknown.”