Alex Cisneros

Alex Cisneros is a specialist public law and private client barrister. He has experience handling significant contentious and non-contentious matters with a particular emphasis on mental capacity.

In his spare time, Alex sits as a Member of the Beckmead Family of SEN Schools. In 2018, Alex was appointed a Bar Council social mobility advocate, a role that he is proud of.


Alex practises in both the property/financial affairs health/welfare jurisdictions of the court. He acts regularly for the Official Solicitor, the Office of the Public Guardian, local authorities, CCGs and family members.

Health and welfare

Alex is ranked in Legal500, Chambers & Partners and BestLawyers for his Court of Protection practice. He acts regularly in complex welfare proceedings and in cases involving deprivations of liberty.

Alex is currently completely a part-time PhD under the supervision of Professor Rosie Harding. His research focuses on the impact of the Liberty Protection Safeguards for vulnerable people.

Property and affairs

Alex regularly represents the Office of the Public Guardian and advises in cases involving the scope of the role of a financial deputy, lasting powers of attorney; statutory wills and financial abuse. He has been involved in two guidance cases involving the operation of deputyship and lasting powers of attorney in England and Wales.

Alex also has experience of advising internationally about deputyship, powers of attorney and other cross jurisdictional mental capacity disputes. He has advised overseas dependencies and crown dependencies about their mental health and mental capacity legislation. He is also an Associate Fellow of the Royal Commonwealth Society and contributes to discussions about mental health legislation in Commonwealth member states.

Notable Court of Protection cases

University College London Hospitals NHS Foundation Trust v HER & Anor [2024] EWCOP 25

The Court investigated whether or not it is in her P’s best interests to be given medical care and treatment recommended by her clinicians at University College London Hospital NHS Foundation Trust.

BR v NAR & Ors [2022] EWCOP 57

‘Trailblazer’ case in which Alex represented the Public Guardian. The case involved a 96-year-old woman with a diagnosis of Alzheimer’s disease. Her six children and one of their spouses were all parties to the proceedings.

ML v (1) Priory Healthcare Ltd (2) SSJ [2023] UKUT 237 (AAC)

A mental health tribunal case involving the interaction between the Mental Capacity Act 2005 and the Mental Health Act 1983 in the context of restricted patient (a prisoner).

MM v A City Council [2021] EWCOP 62

A reported case before the Court of Protection, in which the Court investigated an unusual situation involving restrictions imposed on a young man at serious risk of offending.

AA v London Borough of Southwark [2021] EWCA Civ 512

A Court of Appeal case giving authoritative guidance on the approach required of Court of Protection judges under Article 6 of ECHR when considering excluding a party from proceedings.

Re Various Lasting Powers of Attorney [2019] EWCOP 40

Case involving Lasting Power of Attorney instruments that purport to give the attorney(s) the power to provide financial assistance and maintenance to a person other than the donor. The case is intended to provide guidance for future LPAs.

Office of the Public Guardian v PGO & Ors, Re: BGO [2019] EWCOP 13

Guidance on the validity of Lasting Power of Attorney instruments and when they can be treated as being in their prescribed form.

Alex has particular experience of advising in relation to end of life planning involving wills and lasting powers of attorney.

Examples of recent work includes:
• Making claims for financial provision under the Inheritance (Provision for Family and Dependents) Act 1975;
• The administration of estates; and
• Disputed wills, particularly where the testator’s mental capacity is in question.


Alex has experience of public law cases in various tribunals, the High Court and the Court of Appeal. His public law work largely involves:

– Mental capacity
– Education law
– Prison law

Alex is a member of the B Panel of the Attorney General’s Panel of Junior Counsel to the Crown.

As well as tribunal/ court work, Alex also has experience of advising the Ministry of Justice, the Foreign, Commonwealth & Development Office, the Office of Qualifications and Examination Regulation and the Department of Education in relation to various public law and policy matters.

Notable Public Law cases

R (ECPAT UK) v Kent CC, SSHD [2024] EWHC 1353 (Admin)

The final judgment in a case involving the treatment of newly arrived unaccompanied asylum seeking children. Junioring for Joanne Clement KC.

Kousar & Ors v Secretary of State for the Home Department [2018] EWCA Civ 2462

Junior Counsel in this Court of Appeal case seeking an extension of the principles established in the earlier immigration case of Basnet.

Related updates

Alex Cisneros is regulated by the Bar Standards Board (BSB) and holds a current practising certificate. If you are not satisfied with the service provided, please click here.

"He is always very well prepared, thorough and knowledgeable."; "Alex is incredibly prompt in turning work around and getting pleadings prepared. He is thorough, he looks for issues and he advises accurately and comprehensively."; "He is excellent with clients and his written advocacy is really good too."

Court of Protection: Health & Welfare, Chambers & Partners, 2024

'Alex is always very prompt with the delivery of his work. He is thorough, accurate, very helpful, and knowledgeable. He will always go the extra mile and is a very capable advocate.'

Court of Protection and Community Care, Legal 500, 2024

“Alex is incredibly measured, very approachable and great at negotiating.”

Court of Protection: Health & Welfare, Chambers and Partners 2023

“His written work is brilliant.”

Court of Protection: Health & Welfare, Chambers and Partners 2023

"Alex is a go to barrister for COP work. He is very well organised and responsive. His written skills are superb, and he presents his arguments carefully. He is a measured but an effective advocate."

Court of Protection and Community Care, Legal 500 2023

"He's very quick, bright and turns work around very quickly."

Court of Protection: Health & Welfare, Chambers & Partners 2022

"He has amazing technical ability as well as a warm and friendly persona when dealing with clients."

Court of Protection: Health & Welfare, Chambers & Partners 2022

To find out more, contact Matt Sale on +44 (0)20 7427 4910 or Lexie Johnson on + 44 (0) 207 427 0801 for a confidential discussion.

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