Oliver Millington

Call: 2003

"A go-to counsel for children's guardians"

Chambers UK 2020

Oliver is an experienced family law barrister who specialises in all aspects of the law relating to children.

The focus of Oliver’s family practice is on public law proceedings in which he represents local authorities, parents, extended family members, prospective adopters and children via their guardians. He is regularly instructed in complex cases concerning serious non-accidental injury, sexual abuse and complex mental health issues. Oliver is used to dealing with international issues concerning jurisdiction and placements abroad.

Oliver is also regularly instructed in private law disputes, in particular where there are allegations of serious physical or sexual abuse, cases involving intractable hostility and where the children are separately represented

As an advocate, Oliver has the benefit of drawing on a common law background, which has given him exposure to a wide variety of tribunals, including jury trials. His previous experience in personal injury and clinical negligence law has provided him with a distinct advantage in the many family cases that concern complex medical issues.

Oliver is qualified to accept Direct Access instructions.

Expertise

The focus of Oliver’s family practice is on public law proceedings in which he represents local authorities, parents, extended family members, prospective adopters and children via their guardians. He is regularly instructed in complex cases concerning serious non-accidental injury, sexual abuse and complex mental health issues. Oliver is used to dealing with international issues concerning jurisdiction and placements abroad.

Oliver is also regularly instructed in private law disputes, in particular where there are allegations of serious physical or sexual abuse, cases involving intractable hostility and where the children are separately represented.

Notable Family Law cases


A Local Authority v G (2022)

Oliver was First Junior representing the child in a 4-week fact-finding hearing concerning the death of a sibling. All other parties were represented by Leading and Junior Counsel.

A Local Authority v D (2021)

Oliver separately represented a teenager who was the subject of a Deprivation of Liberty application. The case was joined with several others to form a test case on a novel point of law, namely whether the High Court can authorise under its inherent jurisdiction the deprivation of liberty of a child under the age of 16 where the child’s placement is prohibited by regulations that came into force on 9.09.21: Tameside MBC v AM and others [2021] EWHC 2472 (Fam).

A Local Authority v C (2020-2021)

Oliver was junior counsel for the Local Authority in this High Court case that involved the death of a child. Oliver and his leader succeeded in obtaining findings that the mother’s boyfriend caused the child’s death. See C (A Child) [2020] EWCA Civ 987.

A Local Authority v A (2020)

This High Court case concerned a mother’s refusal to consent to life-saving medical treatment for her son, who suffered from Sickle Cell Disease. The case involved a complex issue as to whether the treatment recommended by doctors at the treating hospital was in the child’s interests. Oliver succeeded in obtaining the orders sought by his client to protect the child.

A Local Authority v X (2019)

Oliver acted as Special Advocate for a parent in a closed hearing in the High Court in relation to whether his client should receive highly confidential and sensitive material.

Recent News

Regulated by the Bar Standards Board (BSB)

Regulated by the Bar Standards Board (BSB) and holds a current practising certificate. To see my privacy notice click here.

  • BA (Hons), Modern Languages, Oxford University
  • Postgraduate Diploma in Law, College of Law

  • Family Law Bar Association
  • Association of Lawyers for Children

  • Recorder of the Family Court

"His written advocacy is extremely strong"

Legal 500 2020

"A fantastic litigator"

Legal 500 2019

"A pleasure to instruct"

Legal 500 2018

"A go-to counsel for children's guardians, who has the personal touch and adopts a quiet but assured approach. He gets his points across to judges in a way that takes them through all the issues, and supports his position without antagonising the other parties."

Chambers UK, Family (Children) 2020

"Professional and well prepared, he strikes the right balance of being pleasant while still fighting his client's corner."

Chambers UK, Family (Children) 2020

"Has a lovely manner, he is clear and to the point whilst being available and supportive of clients. His written advocacy is extremely strong."

Legal 500, Children Law 2020

"Oliver is very grounded, with a good sense of proportion. He doesn’t pretend that black is white, and sees the bigger picture in a case."

Chambers UK, Family (Children), 2019

"A fantastic litigator, he is reliable, presents cases very clearly, and has excellent client skills."

Legal 500, Children Law 2019

"His civil practice really helps in cases where there are sophisticated medical issues such as non-accidental injury. An excellent choice in those cases, he's very well respected and has a good client manner. He's a very pragmatic, sensible advocate"

Chambers UK, Family (Children), 2018

"A pleasure to instruct."

Legal 500, Children Law 2018

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