“i) The habitual residence of a child corresponds to the place which reflects some degree of integration by the child in a social and family environment (A v A, adopting the European test). ii) The test is essentially a factual one which should not be overlaid with legal sub-rules or glosses. It must be emphasised that the factual enquiry must be centred throughout on the circumstances of the child’s life that is most likely to illuminate his habitual residence (A v A, Re KL). iii) In common with the other rules of jurisdiction in Brussels IIR its meaning is ‘shaped in the light of the best interests of the child, in particular on the criterion of proximity.’ Proximity in this context means ‘the practical connection between the child and the country concerned’: A v A (para 80(ii)); Re B (para 42) applying Mercredi v Chaffe at para 46). iv) It is possible for a parent unilaterally to cause a child to change habitual residence by removing the child to another jurisdiction without the consent of the other parent (Re R); v) A child will usually but not necessarily have the same habitual residence as the parent(s) who care for him or her (Re LC). The younger the child the more likely the proposition, however, this is not to eclipse the fact that the investigation is child focused. It is the child’s habitual residence which is in question and, it follows the child’s integration which is under consideration. vi) Parental intention is relevant to the assessment, but not determinative (Re KL, Re R and Re B); vii) It will be highly unusual for a child to have no habitual residence. Usually a child loses a pre-existing habitual residence at the same time as gaining a new one (Re B); (emphasis added); viii) In assessing whether a child has lost a pre-existing habitual residence and gained a new one, the court must weigh up the degree of connection which the child had with the state in which he resided before the move (Re B – see in particular the guidance at para 46); ix) It is the stability of a child’s residence as opposed to its permanence which is relevant, though this is qualitative and not quantitative, in the sense that it is the integration of the child into the environment rather than a mere measurement of the time a child spends there (Re R and earlier in Re KL and Mercredi); x) The relevant question is whether a child has achieved some degree of integration in social and family environment; it is not necessary for a child to be fully integrated before becoming habitually resident (Re R) (emphasis added); xi) The requisite degree of integration can, in certain circumstances, develop quite quickly (Art 9 of BIIR envisages within 3 months). It is possible to acquire a new habitual residence in a single day (A v A; Re B). In the latter case Lord Wilson referred (para 45) to those ‘first roots’ which represent the requisite degree of integration and which a child will ‘probably’ put down ‘quite quickly’ following a move; xii) Habitual residence was a question of fact focused upon the situation of the child, with the purposes and intentions of the parents being merely among the relevant factors. It was the stability of the residence that was important, not whether it was of a permanent character. There was no requirement that the child should have been resident in the country in question for a particular period of time, let alone that there should be an intention on the part of one or both parents to reside there permanently or indefinitely (Re R). xiii) The structure of Brussels IIa, and particularly Recital 12 to the Regulation, demonstrates that it is in a child’s best interests to have an habitual residence and accordingly that it would be highly unlikely, albeit possible (or, to use the term adopted in certain parts of the judgment, exceptional), for a child to have no habitual residence; As such, “if interpretation of the concept of habitual residence can reasonably yield both a conclusion that a child has an habitual residence and, alternatively, a conclusion that he lacks any habitual residence, the court should adopt the former” (Re B supra); If there is one clear message emerging both from the European case law and from the Supreme Court, it is that the child is at the centre of the exercise when evaluating his or her habitual residence. This will involve a real and detailed consideration of (inter alia): the child’s day to day life and experiences; family environment; interests and hobbies; friends etc. and an appreciation of which adults are most important to the child. The approach must always be child driven…”
“In conclusion on this issue, while Lord Wilson’s see-saw analogy can assist the court when deciding the question of habitual residence, it does not replace the core guidance given in A v A and other cases to the approach which should be taken to the determination of the habitual residence. This requires an analysis of the child’s situation in and connections with the state or states in which he or she is said to be habitually resident for the purpose of determining in which state he or she has the requisite degree of integration to mean that their residence there is habitual. Further, the analogy needs to be used with caution because if it is applied as though it is the test for habitual residence it can, as in my view is demonstrated by the present case, result in the court's focus being disproportionately on the extent of a child's continuing roots or connections with and/or on an historical analysis of their previous roots or connections rather than focusing, as is required, on the child's current situation (at the relevant date). This is not to say continuing or historical connections are not relevant but they are part of, not the primary focus of, the court's analysis when deciding the critical question which is where is the child habitually resident and not, simply, when was a previous habitual residence lost.”
“When determining habitual residence there is no requirement that, to be sufficient to support a finding, the individual needs to be happy, well cared for or free from abuse. The 'social and family environment' into which a child might be integrated may include both positive and negative factors. These will not be irrelevant.”