“27. InInreE[2012] 1AC144 thiscourtconsideredthe situation in which the anxieties of a respondent mother about a return with the child to the state of habitual residence were not based upon objective risk to her but nevertheless were of such intensity as to be likely, in the event of a return, to destabilise her parenting of the child to the point at which the child's situation would become intolerable. No doubt a court will look very critically at an assertion of intense anxieties not based upon objective risk; and will, among other things, ask itself whether they can be dispelled. But in In re E it was this court's clear view that such anxieties could in principle found the defence. … 34. … The critical question is what will happen if, with the mother, the child is returned. If the court concludes that, on return, the mother will suffer such anxieties that their effect on her mental health will create a situation that is intolerable for the child, then the child should not be returned. It matters not whether the mother's anxieties will be reasonable or unreasonable. The extent to which there will, objectively, be good cause for the mother to be anxious on return will nevertheless be relevant to the court's assessment of the mother's mental state if the child is returned.”
"… in evaluating the evidence the court will of course be mindful of the limitations involved in the summary nature of the Hague Convention process. It will rarely be appropriate to hear oral evidence of the allegations made under article 13(b) and so neither those allegations nor their rebuttal are usually tested in cross-examination."