Oliver is a criminal and regulatory barrister with an established and busy practice across serious crime and public law. He appears regularly in the Crown Court for both the prosecution and the defence, and is routinely instructed in complex and high-pressure cases requiring detailed preparation, careful analysis, and confident advocacy

His criminal practice spans the full range of serious offending, including large-scale drug conspiracies, organised crime, firearms, serious violence, rape and sexual offences, and complex fraud. He is frequently instructed in cases involving substantial volumes of technical and expert evidence such as telecommunications data, cell site analysis, CCTV, and forensic or medical material, and is adept at distilling that material into clear and persuasive arguments. His approach is structured and methodical, with a focus on identifying the core issues in a case and advancing them with precision and clarity before judge and jury.

Oliver has experience both as junior alone and as a led junior in substantial multi-handed cases, including those arising from major police investigations and specialist prosecution units. He is equally comfortable prosecuting and defending and brings a balanced and thoughtful perspective to each role. His advocacy is concise and well judged, and he is known for maintaining composure under pressure while demonstrating close attention to detail in both preparation and delivery. His cross-examination is focused and controlled, and his closing speeches are carefully structured to assist the jury in navigating often complex factual issues.

In addition to his criminal work, Oliver has a well-developed regulatory and public law practice. He advises and represents individuals, corporate bodies, local authorities, and government agencies across a range of areas including health and safety, environmental law, customs and excise, and professional discipline. He has experience of appellate work by way of case stated and judicial review, including appearances in the Administrative Court involving detailed questions of statutory interpretation and human rights.

Oliver is frequently instructed in cases that require careful handling, whether because of their complexity, sensitivity, or public profile. He is known for working closely with instructing solicitors and for providing advice that is clear, practical, and responsive to the demands of each case. He adopts a collaborative and approachable style, ensuring that clients are well informed and supported throughout proceedings, while maintaining a professional and measured presence in court.

His recognition as a “Rising Star” by Legal 500, reflects his reputation for sound judgment, careful preparation, and effective advocacy.