Matthew Keliris-Thomas

Call 2019

"He is excellent! Doesn’t miss a beat."

Matthew’s criminal advocacy has won the praise of judges and clients. His courtroom ability is supplemented by his public and immigration work.

Matthew accepts instructions both prosecuting and defending in the Magistrates’ and Crown Court. His cases cover the full gamut of criminal law including serious violent crimes, offensive weapons, domestic violence, sexual offences, fraud and dishonesty, drug offences and road traffic offences. He has also been successful for clients in proceedings relating to DVPOs, SHPOs and other orders.

Matthew has a growing practice in public law adjacent to his criminal practice and appears regularly in extradition and inquiry matters. Matthew also has experience of appeal work, producing advices and grounds for appeal to the Court of Appeal and High Court as part of his practice.

Before coming to the Bar, Matthew was part of the National Crime Agency’s legal team. He advised on public and serious crime, particularly RIPA/IPA, data exploitation, EncroChat, modern slavery and police powers. Matthew then moved to the Attorney General’s Office to lead the Annual Review of Disclosure 2021/22, writing the subsequent Disclosure Guidelines 2022. During his time at the AGO Matthew was seconded for a period to the crisis team dealing with international prosecutions stemming from the Russian invasion of Ukraine.


Featured Crime cases

R v JC [2023] Luton CC

Successfully argued JC was a ‘Lesser Role’ in a PWITS A sentence despite a nil-report PSR and where the Crown had placed the matter in ‘Significant Role’ initially.

R v JD [2023] Huntingon CC

JD had deliberately driven an HGV at the complainant before crashing it into a building. Suspended sentence achieved despite finding of category 1A dangerous driving offence and judicial view that the vehicle had been used as a weapon.

R v BA [2023] Reading MC

Defended BA against two charges of battery against a father and his five-year-old son.

R v CL [2023] St Albans MC

Resisted a breach of sentence prosecution after successfully adducing late evidence which was opposed by the Crown.

R v PH [2023] Croydon MC

PH was found not guilty after trial of witness intimidation after cross-examination exposed a different account between the complainant and OiC leading to further disclosure which undermined the complainant’s account.

R v AA [2023] Westminster MC

Successfully defended AA against a s.5 Public Order Act charge where AA accepted calling the complainant a ‘Muslim c***’ and was captured on BWV.

Featured Immigration & Extradition cases

Slovakia v GS [2023] Westminster MC

GS was sought on an accusation warrant. The Slovakian authorities requested GS to be tried for Fraud. Matthew resisted the request for extradition and was successful on two grounds: Article 8 (Right to Family Life) arguing GS was caring for his unwell wife and s.21A Extradition Act that the punishment potentially faced in Slovakia was disproportionate.

Matthew has been instructed on the Independent Inquiry Relating to Afghanistan

As an adjunct to his practice Matthew has given advice to political bodies via the Bar Council Law Reform Committee.

Recent articles

Chambers are delighted to announce that following completion of successful pupillages

Chambers are delighted to announce that following completion of successful pupillages, Siobhan Cawkwell and Matthew Keliris-Thomas have accepted invitations to join chambers.

Siobhan Cawkwell

Matthew Keliris-Thomas

Regulated by the Bar Standards Board (BSB)

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 excellent! Doesn’t miss a beat."

"Fantastic in Court."

"I was very impressed with his advocacy. Tenacious but impressive for a junior."

  • MA (Hons), Philosophy – University of St Andrews
  • BA, Law – St. Edmund’s College, University of Cambridge
  • Bar Professional Training Course – BPP Holborn

Professional Qualifications

  • Section 28 Certified by Honourable Society of Lincoln’s Inn
  • Nursing & Midwifery Council Trained Case Presenter

  • Criminal Bar Association
  • Honourable Society of Lincoln’s Inn

  • Lord Brougham, Hardwick, and Lord Denning Scholarships – Honourable Society of Lincoln’s Inn
  • Major Award (1/4 of Fees) – BPP Holborn
  • Laurence G Foster IV Prize in Philosophy, Rector’s Scholar, Commendation for Academic Excellence – University of St Andrews
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