Peter O'Brien

Peter O'Brien, the Principal Solicitor and founder of O’Brien Criminal and Civil Solicitors, has amassed over twenty-five years of robust legal experience across New South Wales and Australia. Renowned for his expertise encompassing both criminal defence and civil law, Peter has made significant contributions, particularly in cases involving intentional torts like unlawful imprisonment and malicious prosecution. His prominence in the field is underscored by his regular appearances in the media, where he offers expert opinion on pivotal legal developments and reform. Peter has represented clients in landmark cases throughout Australia, including major Royal Commissions. He was instrumental in the Northern Territory Royal Commission and appeared on national media platforms such as Channel Nine’s 60 Minutes. His role in high-profile defamation and false imprisonment cases, including the representation of Bill Spedding, showcased his ability to navigate complex legal challenges and achieve substantial outcomes. His legal acumen, coupled with a commitment to accessibility through Legal Aid and pro bono work, cements his influential role in shaping Australian law. Dedicated to both practice and education, Peter has co-authored a seminal text on intentional tort litigation and shaped legal precedents through significant cases that have impacted Australian jurisprudence. Notably, in 2016, Peter assisted the Royal Commission into Institutional Responses to Child Abuse during its inquiry into Cardinal George Pell, further highlighting his capacity for impactful advocacy. In addition to his litigation successes, Peter and his firm have provided substantial pro bono support to Aboriginal communities in the Northern Territory, working with the North Australian Aboriginal Justice Agency (NAAJA). His career is characterised by an unwavering commitment to justice, upholding high ethical standards and consistently delivering professional excellence. Through leadership and legal expertise, Peter continues to enhance the legal profession and assure justice for all.