• A notable junior with a flair for advocacy, Oliver Mosley is a capable barrister with a keen tactical mind.

    Corporate & Financial Crime

    Oliver has been appointed to the SFO panel list (Panel C). He is currently acting for Peters and Peters in Post Office and Hickman and Rose in G4S.

    Crime

    Oliver is regularly instructed to defend and prosecute in the Crown, Magistrates' and Youth Courts. He is a Grade 2 CPS advocate. He has undergone vulnerable witness training and is experienced in working with witnesses and clients with complex needs, both from a defence and prosecution perspective. Oliver has completed Youth Justice Legal Centre training and is a registered youth court advocate.

    Regulatory

    Oliver is a registered case presenter with the Nursing & Midwifery Council and has acted for them in front of the interim orders panel and restoration panel.

    Private Prosecutions

    This is an emerging area of Oliver’s practice. He is currently acting in a Trading Standards-led prosecution of an illicit streaming supplier.

    Notable Cases

    Josephine Hamilton & others v Post Office Limited

    R v Seed (Michael)

    R v Varley, Jenkins, Kalaris and Boath

    Appointments

    • CPS - External Advocates Panel (Grade 2)
    • Serious Fraud Office - Counsel Panel C
    • Government Legal Department 'Junior Junior' Scheme – Member
    • Nursing and Midwifery Council – Authorised Case Presenter
    • Youth Court – registered advocate; YJLC trained

    Professional Memberships

    • The Criminal Bar Association
    • The Young Fraud Lawyers Association
    • The Human Rights Lawyers Association
    • The Honourable Society of the Middle Temple
    • FreeBar

    Education

    • Bar Professional Training Course & Master of Laws - City Law School, University of London (2017 – 2018)
    • Diplock Scholar - The Honourable Society of the Middle Temple (2017 – 2018)
    • Graduate Diploma in Law - City Law School, University of London (2016 – 2017)
    • BA (Hons.) Human, Social and Political Science - University of Cambridge (2013 – 2016)

     

    Privacy Notice

    Recent Cases

    News

    Articles

    • The Use of Drill Music in Criminal Trials Part IV - Racial Bias and the Future

      This podcast forms part of a 4-part series on the use of drill music in criminal trials, in which Oliver speaks with senior and junior counsel about their experiences with drill music in court.In this final part, Oliver Mosley speaks with Fallon Alexis<

    • The Use of Drill Music in Criminal Trials Part III - Experts and Exclusion Strategies

      This podcast forms part of a 4-part series on the use of drill music in criminal trials, in which Oliver Mosley speaks with senior and junior counsel about their experiences of drill music in court. In Part III, Oliver speaks to Read more

    • The Use of Drill Music in Criminal Trials Part II - The Defence Response

      This podcast forms part of a 4-part series on the use of drill music in criminal trials in which Oliver Mosley speaks with senior and junior counsel about their experiences of drill music in court. In Part II, Oliver speaks with William Boyce QC about ...

    • A Podcast: The Use of Drill Music in Criminal Trials Part I - The Prosecution Case

      This podcast forms part of a 4-part series on the use of drill music in criminal trials, in which Oliver Mosley speaks with senior and junior counsel about their experiences with drill music in court. In Part I, Oliver speaks with former Senior Treasur...

    • The Use of Gang Affiliation as Evidence of Bad Character

      Oliver Mosley of QEBHW examines gang affiliation as evidence of bad character.The word gang can be a powerful tool in the hands of a skilled prosecutor. The allowances within the Criminal Justice Act means juries are now often furnished with evidence abou...

    • Cracking the Enigma Code: A, B, D & C and Regina [2021] EWCA Crim 128

      A case comment on Enchrochat and A, B, D & C and Regina [2021] EWCA Crim.The Court of Appeal have recently handed down their judgment in the Encrochat test case: A, B, D & C and Regina [2021] EWCA Crim.In this article, Roger Smart and Read more

  • Corporate and Financial Crime

    A junior with a growing practice, Oliver has experience with high-profile financial crime cases. 

    Overview

    Oliver has been appointed to the SFO panel list (Panel C). He is currently acting for Peters and Peters in Post Office and Hickman and Rose in G4S.

    Experience 

    He is currently jointly co-ordinating a team of barristers reviewing over 900 historical prosecutions conducted by the Post Office Ltd, on behalf of Peters & Peters. This followed a recent decision by the Court of Appeal to overturn the convictions of 39 former sub-postmasters following a referral from the Criminal Cases Review Commission. The disclosure review was specifically commended by the Court of Appeal in their recent judgement as being both diligent and thorough.

    Oliver is also assisting Hickman & Rose in the SFO prosecution of former executives of G4S, due for trial in 2022. This follows the DPA reached between the SFO and G4S in July 2020.

    Oliver spent much of his pupillage assisting Ed Brown QC and Philip Stott with the SFO prosecution of former Barclays Bank executives. He conducted in-depth research into the implications for corporate criminal liability following the case.

    Oliver has been appointed to the Serious Fraud Office list (Panel C). 

    Recent Cases

  • An impressive advocate with a persuasive style, Oliver regularly defends and prosecutes in a range of criminal matters.  

    Overview 

    Oliver is regularly instructed to defend and prosecute in the Crown, Magistrates' and Youth Courts. He is a Grade 2 CPS advocate. He has undergone vulnerable witness training and is experienced in working with witnesses and clients with complex needs, both from a defence and prosecution perspective. Oliver has completed Youth Justice Legal Centre training and is a registered youth court advocate.

    Experience 

    As a Grade 2 advocate for the CPS, Oliver has prosecuted numerous multi-handed trials as well as robbery, ABH and drug offences. He is keen to expand his practice in violent crime and sexual offences and has undergone vulnerable witness training.

    Oliver has been commended by solicitors for his sound judgement and client care. He is currently instructed in several criminal matters due for trial this year, including possession with intent to supply drugs and controlling/coercive behaviour.

    He has a developing practice in advisory work. Oliver regularly advises on charge and evidence for a range of clients including the CPS.

    As a pupil, Oliver supported senior members of chambers on various high-profile prosecutions, including that of Michael Seed, the final individual involved in the Hatton Garden burglary. More recently, he acted for the Crown in the sentencing of a £4.2m diamond theft; believed to be the largest theft from a shop in English legal history.

    Oliver has just released a 4-part podcast on the use of drill music in criminal trials, a topic he wrote about in his Masters’ dissertation on the use of bad character evidence to demonstrate gang affiliation. In the podcast, he speaks with Edward Brown QC, William Boyce QC, Davis Spens QC, Tom Broomfield and Fallon Alexis about their experiences prosecuting and defending so-called ‘drill cases’.

    Recent Cases

    News

    • The Use of Drill Music in Criminal Trials Part III - Experts and Exclusion Strategies

      This podcast forms part of a 4-part series on the use of drill music in criminal trials, in which Oliver Mosley speaks with senior and junior counsel about their experiences of drill music in court. In Part III, Oliver speaks to Read more

    • The Use of Drill Music in Criminal Trials Part II - The Defence Response

      This podcast forms part of a 4-part series on the use of drill music in criminal trials in which Oliver Mosley speaks with senior and junior counsel about their experiences of drill music in court. In Part II, Oliver speaks with William Boyce QC about ...

    • A Podcast: The Use of Drill Music in Criminal Trials Part I - The Prosecution Case

      This podcast forms part of a 4-part series on the use of drill music in criminal trials, in which Oliver Mosley speaks with senior and junior counsel about their experiences with drill music in court. In Part I, Oliver speaks with former Senior Treasur...

    • The Use of Gang Affiliation as Evidence of Bad Character

      Oliver Mosley of QEBHW examines gang affiliation as evidence of bad character.The word gang can be a powerful tool in the hands of a skilled prosecutor. The allowances within the Criminal Justice Act means juries are now often furnished with evidence abou...

    Articles

    • The Use of Drill Music in Criminal Trials Part IV - Racial Bias and the Future

      This podcast forms part of a 4-part series on the use of drill music in criminal trials, in which Oliver speaks with senior and junior counsel about their experiences with drill music in court.In this final part, Oliver Mosley speaks with Fallon Alexis<

    • The Use of Drill Music in Criminal Trials Part III - Experts and Exclusion Strategies

      This podcast forms part of a 4-part series on the use of drill music in criminal trials, in which Oliver Mosley speaks with senior and junior counsel about their experiences of drill music in court. In Part III, Oliver speaks to View article

    • The Use of Drill Music in Criminal Trials Part II - The Defence Response

      This podcast forms part of a 4-part series on the use of drill music in criminal trials in which Oliver Mosley speaks with senior and junior counsel about their experiences of drill music in court. In Part II, Oliver speaks with William Boyce QC about ...

    • A Podcast: The Use of Drill Music in Criminal Trials Part I - The Prosecution Case

      This podcast forms part of a 4-part series on the use of drill music in criminal trials, in which Oliver Mosley speaks with senior and junior counsel about their experiences with drill music in court. In Part I, Oliver speaks with former Senior Treasur...

    • The Use of Gang Affiliation as Evidence of Bad Character

      Oliver Mosley of QEBHW examines gang affiliation as evidence of bad character.The word gang can be a powerful tool in the hands of a skilled prosecutor. The allowances within the Criminal Justice Act means juries are now often furnished with evidence abou...

    • Cracking the Enigma Code: A, B, D & C and Regina [2021] EWCA Crim 128

      A case comment on Enchrochat and A, B, D & C and Regina [2021] EWCA Crim.The Court of Appeal have recently handed down their judgment in the Encrochat test case: A, B, D & C and Regina [2021] EWCA Crim.In this article, Roger Smart and View article

  • A methodical barrister with a calm and considered approach to his cases.

    Overview 

    Oliver is a registered case presenter with the Nursing & Midwifery Council and has acted for them in front of the interim orders panel and restoration panel.

    Experience 

    Oliver recently acted in an 8-day hearing as a Case Presenter for Social Work England, resulting in a finding of impairment and the suspension of the registrant.

    He has also assisted other members of chambers in their dealings with other regulators including the General Medical Council, the General Dental Council, and the Gambling Commission.

    Oliver's research has covered areas such as entrapment and the lawfulness of test purchasing, and the differing disclosure obligations within the regulatory sector. 

     

  • Private Prosecutions

    A junior with a clear focus on detail, Oliver is developing his practice in private prosecutions.

    Overview 

    This is an emerging area of Oliver’s practice. He is currently acting in a Trading Standards-led prosecution of an illicit streaming supplier.

    Experience 

    Oliver has previously worked on matters involving the Premier League as well as a wide-ranging intellectual property fraud investigation.

    Oliver has assisted other members of Chambers by conducting research on multi-jurisdictional prosecutions and the inter-play between prosecutions and civil proceedings.

    Recent Cases