Brian Horkan


Brian is Head of our Public Health and Prosecutions team a partner in our Dispute Resolution team. Brian has extensive experience advising clients in complex constitutional and administrative law matters. He is an expert in health care law with specialities in wardship, child protection, mental health, and adoption.

Brian has advised on appearances and interaction with Tribunal of Inquiry and Commissions of Investigation. He has also advised on consent to treatment, confidentiality, freedom of information and data protection.

He leads the regulatory criminal team advising and acting in prosecutions and advising regulators in developing prosecution procedures and policies.

Brian also has a keen interest in innovation in legal services. He is a Chair of the Law Society’s Technology Committee engaging and supporting lawyers to use technology in practice.


  • Dispute Resolution

  • Civil Litigation

  • Criminal Litigation

  • Investigations/Inquiries

  • Judicial Review

  • Healthcare Law

  • Administrative Law

Representative Matters

  • Successfully defended Article 40 Habeas Corpus proceedings in relation to detention and management of a vulnerable adult in proceedings before the President of the High Court.
  • Advised Public and Private Sector client on the implementation and interpretation of Children First and Vetting legislation.
  • Led Mason Hayes & Curran's regulatory criminal prosecution team advising and acting in food hygiene, tobacco, environmental and other regulatory criminal prosecutions.

Speaking Engagements & Teaching

  • Law Lectures in Trinity School of Social Work and Social Policy Undergraduate and Master Courses
  • Lectures on Law Society Diplomas in Mental Health and Child Law 
  • LinkedIn

Areas of Expertise

Healthcare and Medical Law Public, Regulatory and Investigations Dispute Resolution Health & Prosecutions

Professional Memberships

Member of the Law Society and Dublin Solicitors Bar Association

Member of the Chartered Institute of Arbitrators

Admitted as a Solicitor to the Senior Courts of England and Wales

Member of Law Society Technology Committee


UCD & Melbourne University, BCL (International)

UCD, Diploma in Human Rights

UCD, Diploma in Arbitration

CEDR Accredited Mediator