Beyond Legal Representation.
I am a senior barrister dedicated to the architecture of justice. I do not simply argue the law; I help shape the outcome of complex international disputes.
Marguerite Ellison KC
Head of Chambers“The law is a living instrument. In the right hands, it protects the vulnerable and ensures that power is exercised with accountability.”
I am a senior barrister based in London, specialising in international criminal law and high-stakes corporate litigation. With an LL.M. in International Criminal Law, I bridge the gap between domestic English law and the machinery of international courts.
My career began in criminal defence, where I built a reputation for meticulous preparation and a calm, formidable presence in court. I have since advised multinational corporations on regulatory compliance across Europe and defended high-profile individuals in extradition proceedings.
I believe effective defence needs more than knowledge of the law. It needs a deep understanding of the political and social forces that shape legal outcomes.
Bar Admissions &
Associations
Recognised by leading legal bodies for excellence in criminal defence and international arbitration.
Bar Council of England & Wales
Practising Member
International Criminal Court Bar
List of Counsel
Criminal Bar Association
Criminal Law Committee
Westmoor University Law School
Guest Lecturer
“I do not settle for adequacy. I prepare every case as if it will define the law for the next generation.”
The Ellison Standard
A Record of Defence
Key milestones in my practice over fifteen years.
Expansion to Corporate Compliance
Launched a dedicated team for multinational regulatory defence across Europe.
Landmark Human Rights Victory
Successfully defended a collective of journalists against state overreach in a precedent-setting appeal.
Masters of Law (LL.M)
Completed advanced studies in International Criminal Law with distinction.
Establishment
Founded Ellison Chambers in central London.