Osman Osman
  • Deals with large volumes of evidence and material and does so with meticulous attention to every detail.

    Chambers UK 2023, Crime

  • An impressive advocate who comes across very well in court.

    Chambers UK 2023, Crime

  • Osman is very hard-working and resolute in the way he prepares his cases. Sound judgment. Very diligent.

    Legal 500 2023, Fraud: Crime 

  • Osman is a thorough barrister, he is able to advise on all stages of proceedings.

    Legal 500 2023, Crime 

  • Osman is a prodigious worker, a knowledgeable lawyer, and a highly effective advocate with a unique style.

    Legal 500 2022, Fraud Crime 

  • He is brilliant at dealing with legal submissions, he has an eye for detail and he is able to grasp complex law, applying his knowledge superbly for the benefit of the client.

    Chambers UK 2022

  • Osman is thorough and tenacious. He seeks to resolve issues amicably, he never takes a bad point. He is very good at settling and dealing with even the most difficult client. He is charming and courteous, everything you could want. I am surprised he has not taken silk.

    Legal 500 2022, Crime 

  • Excellent with clients and tenacious in court. 

    Chambers UK 2021

  • He is determined and fearless in court, showing courage in taking and leading difficult but justified arguments/submissions.

    Legal 500 2021

  • He is a fighter, who will not give up on his client in any circumstances. He is exceptionally hard-working and fearless in the face of challenge from his opponent or from the bench. He combines this tenacity in court with an easy-going charm and kindness to all out of court.

    Legal 500 2021

  • Osman is very strong in putting the client first, listening to them and showing empathy and compassion. This breeds trust and confidence.

    Legal 500 2021

  • A feisty jury advocate with an affable style.

    Legal 500 2020

  • Very experienced in handling complex fraud work.

    Legal 500 2020

  • Indefatigable, and charming to boot.

    Legal 500 2018

  • A feisty jury advocate with an affable style.

    Legal 500 2018

  • He appears against well-known silks in confiscation proceedings

    Legal 500

  • Alongside his fraud work, he handles high-stakes drug importation cases

    Legal 500

  • He has an incredible work ethic and charms the court

    Legal 500

Called 1995

Osman Osman


Osman Osman is a specialist defence advocate practising in all types of criminal cases including major organised crime. He is regularly instructed in the largest and most complex cases.

Highly experienced in cases involving serious fraud and financial regulation both pre and post charge across a broad spectrum including HMRC conspiracies to defraud, VAT evasion and MTIC and trading standards matters. 

Osman advises both individuals and companies regularly in cases of concerning  quasi criminal/regulatory allegations. Compliance expertise includes the Bribery Act and specifically on co-insurance contracts, third party and brokerage contracts. Osman has unrivalled expertise in  defending in complex Town and Country Planning Act (TCPA) licence and HMO cases and of challenging the related POCA proceedings.

Osman is regularly instructed in complex confiscation matters including asset recovery , including on behalf of third parties and including  the new freezing account order provisions.

His practice includes numerous murder trials and major National Crime Agency  operations. He is adept  in the cross-examination of vulnerable witnesses and to appear in sensitive cases involving young complainants. He has frequently conducted contested confiscation hearings under both the Criminal Justice Act / Drug Trafficking Act and the Proceeds of Crime Act.

Osman advises and appears in appellate proceedings both in the Administrative Court and in the Appeal Courts. Judicial Review proceedings have included successful challenges relating to custody time limit applications.

Ranked as a Leader in Crime and Fraud in the Legal 500 and  as a Leading Criminal Junior in Chambers UK.

Associated Work

  • Osman has lectured upon numerous topics particularly related to fraud and financial regulatory topics.
  • Lectures on the use of forensic evidence in homicide and sexual offences.
  • Visiting lecturer at the Barts & London School of Medicine & Dentistry.
  • Advocacy Trainer and assessor at Inner Temple and at the School of Advanced Legal Studies.

Professional Memberships

  • Criminal Bar Association (CBA)
  • Fraud Lawyers Association (FLA)
  • Proceeds of Crime Lawyers Association (POCLA)
  • Association of Regulatory and Disciplinary Lawyers (ARDL)
  • Member of the Gibraltar Bar
  • British Association for Sport and Law (BASL)