Miranda Zeffman practises in crime, public law and extradition.

Prior to joining Chambers, Miranda worked at a rape crisis centre and in the women’s justice team at APPEAL. She was also an intern at the Capital Appeals Project, a Louisiana law firm providing representation to people on death row.

Miranda was recently seconded to a law firm in order to assist with case preparation for a high-profile espionage trial. The trial was one of the first prosecutions under the National Security Act 2023 and led to the first convictions for Chinese espionage in British history.

Legal Expertise

Crime overview

Miranda regularly prosecutes and defends in the criminal courts. She has acted in cases involving a range of offences including grievous bodily harm, rape, robbery, fraud, drugs supply, possession of prohibited firearms and misconduct in public office.

Miranda understands the value of pre-trial preparation and has secured the discontinuance of several cases through letters of representation, applications to dismiss and the service of detailed expert evidence.

Recent instructions include: defending in a five-handed drugs trial involving complex issues around modern slavery, prosecuting a defendant charged with s.18 GBH, defending in a multi-handed fraud trial (led by Luke Ponte KC) and defending an individual charged with s.18 GBH (led by Matthew Butt KC).

Indicative Crime cases

R v T – Woolwich Crown Court (2025)
Represented a defendant charged with three counts of assault. The case was prosecuted by Treasury Counsel. Acquitted.

R v E – Winchester Crown Court (2025)
Represented a defendant charged with assault and weapons offences. Acquitted.

R v C – Bath Magistrates’ Court (2025)
Represented a defendant alleged to have stolen items from a memorial to a murdered child. Successfully argued that his undiagnosed PTSD had caused him to act impulsively as opposed to dishonestly. Acquitted.

Financial Crime / POCA overview

Miranda is routinely instructed in POCA matters. She has particular expertise in civil recovery proceedings and often acts in applications and appeals relating to cash and account forfeiture. She has also acted in applications for production and disclosure orders.

Miranda recently assisted another member of Chambers in advising a law firm as to its AML obligations. She also assisted with case preparation for a criminal trial concerning alleged breaches of sanctions regulations.

Indicative Financial Crime/POCA cases

Commissioner of Police v X – Southwark Crown Court (2025)
Instructed in disclosure order proceedings arising out of a money laundering investigation into a high-profile businessperson. Persuaded the court to grant a disclosure order that had previously been refused on the papers.

Commissioner of Police v S Ltd & Others – Bromley Magistrates’ Court (2024)
Secured the forfeiture of over £100,000 that had been obtained through fraud and money laundering. The hearing lasted for two days and involved cross-examination of five interested parties.

Public Law

Public Law overview

Miranda accepts instructions across all areas of public law and human rights. She is regularly instructed to advise and act in judicial review proceedings, including at the pre-action stage. She is a member of the Attorney General’s ‘Junior Junior’ scheme.

Miranda has a particular interest in public international law. She was recently led by Rachel Barnes KC in advising an NGO on issues relating to universal jurisdiction and accessorial liability for war crimes. She also assisted Rachel Barnes KC in advising on discrete matters arising from a prosecution for serious international crimes. Prior to joining Chambers, Miranda spent two years on the Young Lawyers Committee of the Human Rights Lawyers Association.

Miranda also accepts instructions in relation to inquests and public inquiries. In 2024, she assisted Matthew Butt KC with a three-week inquest into a fatal shooting.

Indicative Public Law cases

A v MPS (2026)
Acted for the respondent in judicial review proceedings relating to the admissibility of evidence obtained in breach of PACE Code C. Permission refused.

G v MPS (2026)
Acted for the respondent in relation to pre-action correspondence concerning the lawfulness of an arrest warrant. Claim never brought.

Operation [X]
Advised the Metropolitan Police Service as to the scope and application of an international treaty in the context of online child sexual abuse.

Sanctions overview

Miranda has been instructed in multiple sanctions matters. She has advised on issues arising from the Russian sanctions regime, including the transfer of bonds and shares, the effect of director disqualification and the management of trusts. She has also advised on issues relating to the global human rights sanctions regime.

In 2024, Miranda assisted another member of Chambers with case preparation for a criminal trial concerning alleged breaches of sanctions regulations. She has written articles on financial sanctions enforcement and is a contributor to the GIR Guide to Sanctions.

Extradition, INTERPOL & Mutual Legal Assistance overview

Miranda regularly appears in extradition matters at Westminster Magistrates’ Court. She has acted in cases involving a range of requesting states including Hungary, Cyprus and the USA.

During pupillage, Miranda assisted other members of Chambers in preparing cases on behalf of both requested persons and requesting states. These included an extradition request brought by Albania in respect of an alleged “blood feud” murder, an extradition request brought by Romania that involved extensive legal argument about double jeopardy, and multiple appeals against extradition to the High Court.

Pro bono overview

Miranda is committed to pro bono work. She regularly provides free legal advice and representation as part of her practice. She has worked with a number of organisations, including Advocate and the Centre for Women’s Justice.

Miranda was named on the 2025 and 2026 Pro Bono Recognition Lists. The lists celebrate legal professionals in England and Wales who have dedicated at least 25 hours of their time to pro bono work.

Criminal Bar Association
Young Fraud Lawyers Association
Women in Criminal Law
Amicus
Defence Extradition Lawyers Forum
Extradition Lawyers Association

City University, BVS (2022)
City University, GDL (2021)
University of Oxford, BA Modern Languages (2018)

Scholarships and prizes:

Atkin Scholarship, Gray’s Inn (2023)
Ann Goddard Scholarship, Gray’s Inn (2023)
Winner, Gray’s Inn GDL Moot (2021)
Finalist, European Court of Human Rights Moot (2021)
Headridge Scholarship, Gray’s Inn (2021)
Finalist, Human Rights Lawyers Association Moot (2020)
Dame Juliet Wheldon Scholarship, Gray’s Inn (2020)
Christ Church Award for Postgraduate Study (2018)

Crown Prosecution Service (General Crime) Level 2

Prior to joining Chambers, Miranda worked at a rape crisis centre and in the women’s justice team at APPEAL. She was also an intern at the Capital Appeals Project, a Louisiana law firm providing representation to people on death row.

As a law student, Miranda volunteered as a pro bono representative in school exclusion cases and gave free legal advice via the charity IPSEA. She was also a member of the Human Rights Lawyers Association’s Young Lawyers Committee.

Before coming to the Bar, Miranda completed the Teach First Programme and spent two years working as a teacher in a secondary school.

I, Miranda Zeffman, am a data controller and can be contacted at 3 Raymond Buildings, Gray’s Inn, London WC1R 5BH or by telephone on 020 7400 6400 or by email at miranda.zeffman@3rblaw.com.  My Data Protection Policy can be found here.

All personal data that I process is for the purposes of providing legal services, conducting conflict-checks, marketing, defending potential complaints, legal proceedings or fee disputes, keeping anti-money laundering records, training other barristers and pupils and when providing work-shadowing opportunities, and/or exercising a right to a lien.  The types of data that I process vary upon the nature of the legal matter in relation to which I am engaged to advise, but can include names, contact details, biographic details and ‘special category personal data’ (such as details of racial or ethnic origin, political opinions, religious or philosophical beliefs, health, sex life and criminal convictions and proceedings).

Depending upon the circumstances of the case, the legal bases upon which I process personal data are (i) the performance of a contract to which the data subject is a party or in order to take steps at the request of the data subject prior to entering into a contract, (ii) the processing is necessary to comply with legal obligations to which I am subject, or (iii) the processing is necessary for the legitimate interests set out above, except where such interests are overridden by the interests or fundamental rights and freedoms of the data subjects which require protection of personal data, in particular where the data subject is a child.  When I rely on (iii) legitimate interests, my ‘Legitimate Interests Assessment’ can be found help.  When I process data which has not been obtained directly from the data subject (e.g. personal data contained in evidential materials), it will have been supplied to me as part of my instructions in circumstances covered by legal professional privilege.

Depending upon the circumstances of the case, I may share the personal data with:

  1. my Chambers, which supplies professional and administrative support to my practice;
  2. Courts and other tribunals to whom documents are presented;
  3. my lay and professional clients;
  4. potential witnesses, in particular experts, and friends or family of the data subject;
  5. solicitors, barristers, pupils, mini pupils and other legal representatives;
  6. ombudsmen and regulatory authorities;
  7. current, past or prospective employers;
  8. education and examining bodies;
  9. business associates, professional advisers and trade bodies.

I retain personal data for no longer than seven years after the case has come to an end or as otherwise required by law.

I do not intend to transfer data to any country which is not either within the European Union, ‘white listed’ by the EU or otherwise permitted by EU law (e.g. to the USA under the provisions of the ‘Privacy Shield’).

Under the UK GDPR, data subjects whose personal data I process have the right to request from me access to, and rectification or erasure of, their personal data, the right to the restriction of processing concerning them, the right to object to processing as well as the right to data portability.  Data subjects also have the right to lodge a complaint.  Three Raymond Buildings has a data protection complaints procedure which applies to chambers and its barristers.  You can find a copy of our procedure here.

In cases where there is a contract between me and the data subject, the provision of personal data is a contractual requirement and the data subject is obliged to provide the personal data in order that I can supply legal services.  A failure to provide such data may mean that I will not be able to provide the legal services.

Rev 2.2 – 09.07.2026

Data Protection Policy

Legitimate Interests Assessment

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