"(a) to secure the prompt return of children wrongfully removed to or retained in any Contracting State; and (b) to ensure that rights of custody and of access under the law of one Contracting State are effectively respected in the other Contracting States."
"(a) it is in breach of rights of custody attributed to a person, an institution or any other body, either jointly or alone, under the law of the State in which the child was habitually resident immediately before the removal or retention; and (b) at the time of removal or retention those rights were actually exercised, either jointly or alone, or would have been so exercised but for the removal or retention."
"The whole object of the Convention is to secure the swift return of children wrongfully removed from their home country, not only so that they can return to the place which is properly their 'home', but also so that any dispute about where they should live in the future can be decided in the courts of their home country, according to the laws of their home country and in accordance with the evidence which will mostly be there rather than in the country to which they have been removed."
“(i) There is no need for Art 13(b) to be narrowly construed. By its very terms it is of restricted application. The words of Art 13 are quite plain and need no further elaboration or gloss. (ii) The burden lies on the person (or institution or other body) opposing return. It is for them to produce evidence to substantiate one of the exceptions. The standard of proof is the ordinary balance of probabilities but in evaluating the evidence the court will be mindful of the limitations involved in the summary nature of the Convention process. (iii) The risk to the child must be 'grave'. It is not enough for the risk to be 'real'. It must have reached such a level of seriousness that it can be characterised as 'grave'. Although 'grave' characterises the risk rather than the harm, there is in ordinary language a link between the two. (iv) The words 'physical or psychological harm' are not qualified but do gain colour from the alternative 'or otherwise' placed 'in an intolerable situation'. 'Intolerable' is a strong word, but when applied to a child must mean 'a situation which this particular child in these particular circumstances should not be expected to tolerate'. (v) Art 13(b) looks to the future: the situation as it would be if the child were returned forthwith to his or her home country. The situation which the child will face on return depends crucially on the protective measures which can be put in place to ensure that the child will not be called upon to face an intolerable situation when he or she gets home. Where the risk is serious enough the court will be concerned not only with the child's immediate future because the need for protection may persist.
"The grave risk of harm arises not from the return of the child, but from the refusal of the mother to accompany him. The Convention does not require the court in this country to consider the welfare of the child as paramount, but only to be satisfied as to the grave risk of harm. I am not satisfied that the child would be placed in an intolerable situation, if the mother refused to go back. In weighing up the various factors, I must place in the balance and as of the greatest importance the effect of the court refusing the application under the Convention because of the refusal of the mother to return for her own reasons, not for the sake of the child. Is a parent to create the psychological situation, and then rely upon it? If the grave risk of psychological harm to a child is to be inflicted by the conduct of the parent who abducted him, then it would be relied upon by every mother of a young child who removed him out of the jurisdiction and refused to return. It would drive a coach and four through the Convention, at least in respect of applications relating to young children. I, for my part, cannot believe that this is in the interests of international relations. Nor should the mother, by her own actions, succeed in preventing the return of a child who should be living in his own country and deny him contact with his other parent."
“The source of the risk is irrelevant. I do not agree with Ms Papazian’s assertion that a self-created risk (i.e. a mother refusing to return with the children or conflict created by the mother) cannot form the foundation of an Article 13(b) defence. The “coach and four doctrine” deriving from C v C (Abduction: Rights of Custody)[1989] 1 WLR 654 has bene substantially ameliorated following the judgment of Hale LJ in TB v JB (Abduction, Grave Risk of Harm)[2001] 2 FLR 515 (supra) and Potter P in S v B[2005] 2 FLR 878 and the Supreme Court decisions in Re E and Re S. Of course the court will evaluate carefully any assertion that a primary carer cannot return or any other alleged risk to the children arising out of some matter control over which is in the hands of the Respondent but ultimately the court must consider whether the grave risk of harm exists or not, whatever the source.”