Helen Sims is a regulatory, investigations and litigation lawyer based in Sydney.

She has particular experience in administrative law and for over 12 years has acted on behalf of government clients in New South Wales, Victoria and New Zealand in judicial and merits review proceedings and in inquiries, including Royal Commissions, statutory inquiries, probity and corruption investigations and coronial inquests. She has recently expanded her practice to include advice and representation to Commonwealth regulators and regulated entities facing investigations and enforcement proceedings. She has particular experience in Commonwealth and State licensing regimes and compliance decisions made under those regimes.

Helen has represented government clients at first instance and appellate tribunals and courts, including as solicitor advocate. She also has a keen interest in alternative dispute resolution and has successfully mediated a wide range of contentious matters. She has acted for clients in the law enforcement, health, primary industries, energy, natural resources, education and entertainment sectors.

Helen also has significant experience acting for government clients in relation to reviews of government information, privacy and data breach matters.

Helen's previous experience includes acting for regulators in professional disciplinary matters, advising State government in relation to tortious liability, undertaking law reform projects and advising on governance measures.

Helen's experience as both an in-house and external solicitor means she is able to provide advice and representation that is strategic, persuasive and useful to both legal and non-legal clients.