Simon Mills is a Senior Counsel specialising in medical law and in particular clinical negligence, professional regulatory law, mental capacity and coroners' inquests. He has acted in a number of the leading Irish cases in the area. He trained first as a doctor in Trinity College Dublin and then, while practising in a busy urban general practice, as a lawyer in University College Dublin. He was a silver medalist of Trinity's College Historical Society and - at UCD - a gold medalist of the Literary and Historical Society, a medalist in Constitutional Law and a Swift McNeill Scholar. He was called to the Irish Bar in 2002 and to the Inner Bar in 2018. He has an MSc in Medical Ethics from Imperial College London, where his thesis was on Pluralist Approaches to Abortion Law. For Bloomsbury, he is the co-author of two books and has also been a contributor to several other texts. He writes and broadcasts regularly on medico-legal and medical ethical matters.

Aideen Ryan, BCL (NUI) is a Consultant Solicitor in the Regulatory, Professional & Public Law Department of DAC Beachcroft, Dublin. She provides specialist legal advice and representation to professional regulatory bodies across all of their functions on Irish and European Law, including registration/licensing, recognition of professional qualifications, professional competence and education, fitness to practise, emergency suspension applications, sanctioning, corporate governance, High and Supreme Court Appeals and Judicial Reviews. In addition, she provides advice and representation to professionals and representative bodies in relation to their dealings with, and hearings before professional regulatory bodies. She has particular expertise in leading projects and auditing the work of regulators to identify legal risk and in doing so, provides strategic solutions in order to improve their practices and procedures. She is an accredited trainer and regularly speaks at conferences on professional regulatory law. Colm Scott-Byrne BBL (NUI), LLM (Dub) is a practising barrister who specialises in professional regulation and medical law. He completed a bachelor of Business and Law at University College Dublin before receiving a Masters in Law from Trinity College Dublin. He was called to the Bar in 2014.

Prior to working as a barrister, Colm was a Judicial Assistant to the Court of Appeal.