Jamie Mathieson

Call 2014


Jamie has a busy and growing practice across all areas of Chambers’ work. He has experience of all areas of healthcare law, working principally in clinical negligence, inquests and in the Court of Protection. He regularly appears in court with barristers of far higher levels of call, and is recognised for his calm and empathic approach with clients.

Jamie is clerked primarily by Tom O’Connor,  Joe Ralph, Jubeda Begum and Josie Ryan.

Cheryl James Inquest – Deepcut Barracks – factual findings and a conclusion of ‘suicide’ handed down
Bridget Dolan KC and Jamie were counsel to the inquest into the death of Private Cheryl James in 1995 at Deepcut Barracks which ended on 3 June 2016.
Click here for more information 

Harman v East Kent Hospitals NHS Foundation Trust
Jamie was led by Michael Mylonas KC in this multi-million pound High Court claim.

Experience & Expertise

Jamie completed pupillage under the supervision of Bridget Dolan, Michael Mylonas KC and Richard Partridge. Since becoming a tenant he has appeared regularly in court and advised on cases principally in clinical negligence, police law, inquests and in the Court of Protection.

Cases and work of note

Jamie was junior Counsel to the Inquest in the fresh inquests into the deaths of army trainees at Deepcut Barracks in 1995 and 2001. In his own right, Jamie has appeared in many inquests acting on behalf of families, NHS Trusts, individual clinicians, and other Interested Persons, often appearing alongside very experienced barristers including silks and frequently dealing with issues of Article 2, neglect, and PFD reports.

In clinical negligence, Jamie acts on behalf of both Claimants and Defendants in a wide array of cases, including high value claims in the High Court and cases involving complex expert evidence.

In the Court of Protection, Jamie accepts instructions in both health and welfare matters and those concerning property and financial affairs, acting on behalf of the OS, OPG, local authorities, NHS Trusts and individual family members caught up in what are often emotionally involved cases.

Jamie is keen to develop a broad practice and has already built up a considerable range of experience, from judicial review actions in the High Court and representing doctors in regulatory proceedings, to defending English Heritage in the County Court against a claim brought by a druid.


Jamie co-authored chapters fifteen: Withdrawal and Withholding of Treatment, sixteen: The Right to Die? and seventeen: Treating Suicidal Patients in the fourth edition of the book Medical Treatment: Decisions and the Law, edited by Christopher Johnston KC and Sophia Roper KC and written by 27 members of Serjeants’ Inn.

Jamie also co-authored the third edition of Medical Treatment: Decisions and the Law.

Jamie writes for the UK Inquests Law Blog and the UK Police Law Blog, and has drafted headnotes for the Inquest Law Reports.


Jamie studied History at Clare College, University of Cambridge and was awarded a Double First class degree. He graduated from Clare with the Allan Prize for History and an award for contribution to the college. He studied law at City University London and received the highest possible grades of Distinction on the Graduate Diploma in Law and Outstanding on the Bar Professional Training Course. He was awarded Exhibition scholarships by Inner Temple for both the GDL and BPTC.

While studying at Bar school, Jamie worked part-time as a volunteer at the Citizens Advice Bureau. At university Jamie wrote for student newspapers, was President of two college societies, and performed with the Cambridge Footlights.


  • CPBA
  • PIBA
  • PNBA
  • South Eastern Circuit


Seeing a case from a Judge’s point of view was the most valuable experience I gained from the Deepcut Inquests. Most Judges or Coroners – we hope, all of them – come to cases with an open mind and are genuinely dedicated to considering the evidence impartially. It’s so important to shake off any preconceptions or assumptions about a case, and really think about how the evidence will appear to a Judge, tribunal or Coroner looking at a case with fresh eyes.

Whenever I see another barrister performing brilliantly in court, it’s almost always because of how well prepared they are. You can’t succeed unless you know the case inside out. But a barrister isn’t any use to anyone unless they can appreciate what evidence really matters: the challenge is to make out the melody amid all the background noise, and then persuade the Judge to hear the same tune as you.

You learn every day in this job, about the law, about medicine, but also about tactics and strategy in all types of cases. The more cases I take, the more I realise how much the final outcome can be determined by decisions made by the parties really early on. I’m very happy to be involved in the early stages of any case, and I keep the ultimate outcome in mind when making all decisions.

“The law in our practice areas is constantly moving and outcomes are so fact-sensitive that every case needs a customised approach. You’ve got to be versatile.”

The best advocates have more than one setting. I would never want to have a reputation as a particular type of advocate. I’d want to be thought of as a barrister who can adjust their style to what is actually going to help their client.

Empathy is central to success. I try not to make assumptions about how people feel about court proceedings: they can often surprise you. You can’t achieve what your client wants unless you understand what that really is. And sometimes, listening to other parties and appreciating what motivates them can be the key to reaching your own client’s goals.


Jamie is recommended by both Chambers & Partners and the Legal 500 for his expertise in inquests. He is also ranked by the Legal 500 as a rising star in Court of Protection work and recent editorial notes that ‘Jamie’s preparation is meticulous’ and he is ‘a smiling assassin in the courtroom.’

Other recent directory editorial has included the following:

  • a really impressive barrister;
  • extremely hard-working and approachable;
  • I trust Jamie to put clients at ease and get the best possible outcome for the client;
  • approachable and knowledgeable;
  • he can hold his own against people well above his call; and
  • very approachable and thorough.


Jamie adopts and adheres to the provisions of his privacy notice which can be accessed here.

further information

For further details of Jamie’s practice please click on the links to the left or contact a member of the clerking or client service team.

Bar Council Membership No: 62689
Registered Name: James William Mathieson
VAT Registration No: 236 8419 86