Cross-border child custody disputes are some of the most complex matters dealt with by the family court. When parents live in different countries, questions of jurisdiction, habitual residence, and the safety and wellbeing of the children involved become paramount. The recent High Court decision in Y (The Father) v Y (The Mother) [2025] EWHC 1598 (Fam) sheds light on how the family court interprets the Hague Convention on the Civil Aspects of International Child Abduction, as enacted in domestic law through the Child Abduction and Custody Act 1985.
This article provides a detailed summary of the case, analyses the court’s reasoning, and explores the wider implications for future family court proceedings involving international custody and child abduction.
Factual Background
In Y (The Father) v Y (The Mother) [2025] EWHC 1598 (Fam), Mr Y (the father) applied to the family court for a summary return of his two children to Israel under the 1980 Hague Convention as incorporated by the Child Abduction and Custody Act 1985. The two children, referred to as C (age 12) and B (age 9), hold dual British and Israeli citizenship.
After divorcing in 2019, a shared custody arrangement was agreed. The mother, who suffered from mental health problems, moved between England and Israel. In late 2024, she arrived in England with the children on a temporary basis but then refused to return them, citing fears stemming from the Israel/Hamas conflict. She proposed they remain in England until summer 2025.
The father initiated proceedings under the Child Abduction and Custody Act 1985, requesting immediate return. The mother opposed, asserting two main defences: a grave risk exception (Article 13(b) of the Hague Convention) and the children’s objections under Article 13(2).
Legal issues
The family court considered:
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Whether wrongful retention had occurred under Article 3 of the Hague Convention
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Whether the mother could rely on Article 13(b) — that returning the children would pose a grave physical or psychological risk or lead to an intolerable situation
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Whether C and B’s objections, given their age and maturity, fell under Article 13(2)
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The adequacy of proposed undertakings and protective measures to mitigate risks
Decision
Mr Justice Cusworth ordered the summary return of the children to Israel. The court held:
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The retention was wrongful: the children had habitual residence in Israel immediately before the removal, and the father had actual custody rights exercised or available.
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The mother did not discharge the burden under Article 13(b). The risk from the conflict, while real, was not shown to be so grave or intolerable as to outweigh the presumption of return.
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The children’s objections were noted but did not reach the threshold under Article 13(2).
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Proposed undertakings and support measures (mental health services, shared custody structure) were considered sufficient to mitigate potential harms.
Commentary on the case
Wrongful retention
Under the Custody Act 1985, wrongful removal or retention is defined by Article 3: breach of custodial rights and habitual residence of the child immediately before transfer. Here, both elements were satisfied. The family judgments in this case reaffirms the strict application of Article 3 principles.
Article 13(b): Grave risk exception
The mother sought to rely on Article 13(b): returning to Israel would expose the children to grave physical or psychological harm, or place them in an intolerable situation. The court acknowledged the ongoing conflict but found that:
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The risk was contextual and temporary, not meeting the statutory threshold.
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Protective measures, undertakings, and continued shared parenting would reduce risk.
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The mother’s mental health issues, while relevant, were not shown to render her incapable of parenting in a way that created a grave risk.
Hence, Article 13(b) failed as a defence.
Article 13(2): Children’s objections
Although the children expressed distress or fear, the court found that their maturity did not render their objection determinative. They did not articulate a clear and settled wish not to return. This is consistent with family judgments emphasising that only well‑evidenced, mature objections will safely fall within Article 13(2).
Measures and undertakings
The father offered undertakings: accommodation, shared custody plans, funding, and access to services in Israel. These were accepted as adequate to allay risks, demonstrating how effective undertakings can tip the balance when other factors are evenly matched.
Application to future UK cases: How this decision shapes precedent
1. Clarifies the interpretation of ‘grave risk’
This case provides guidance for family court judges evaluating Article 13(b). It sets a clear standard: general political or conflict‑based risks, however serious, must cross a clearly defined threshold before denying return. Judges must weigh both the nature of the threat and whether mitigations (such as services or undertakings) reduce it below that threshold.
2. Children’s wishes: Not determinative unless mature and well‑evidenced
The decision underscores that family judgments must carefully evaluate children’s objections. Mere fear or anxiety is insufficient. Courts should assess the children’s understanding and maturity; only if their objections are consistent, sustained, and reasoned will Article 13(2) apply.
3. Importance of undertakings
This case illustrates the power of undertakings. Where the applicant offers realistic, enforceable protective measures, even arguable risks may not override the return presumption. That sets precedent for future litigants to propose comprehensive safeguards.
Applying the Custody Act 1985 in new contexts
The Child Abduction and Custody Act 1985 continues to play a central role in cross‑border child custody disputes. This decision interprets the statute in line with the Hague Convention and provides a UK‑specific lens for assessing exceptions and defences.
In future cases, for example, where a parent cites war, climate disaster, or political upheaval as reasons to remain, the court will require concrete evidence of grave risk. Speculative or temporary dangers are unlikely to meet the statutory test absent strong supporting documentation.
This case may be contrasted with other 2025-era decisions (e.g. H v O where domestic abuse justified refusal). Those cases make clear that certain factual patterns (e.g. credible, ongoing threats to safety; lack of protective infrastructure in country of return) can satisfy Article 13(b).
UK solicitors and courts will now reference this case for clarity and consistency in family judgments. It provides a balanced precedent that ensures children are not unnecessarily removed from their habitual residence, while still safeguarding against real and serious harm.
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