John Byrne


John is a Barrister in our Public, Regulatory & Investigations team. John advises a variety of clients, including public bodies, in relation to contentious and non-contentious matters involving public law issues, particularly in the area of administrative law and judicial review.

John has particular expertise and experience in advising public bodies in relation to their functions, duties and powers. John has an in depth knowledge of, and extensive experience in, the investigation and prosecution of offences and in various forms of litigation and dispute resolution involving public bodies. John also advises public bodies in relation to the drafting of internal and public facing policies.

  • Regulatory Law
  • Public and Administrative Law
  • Investigations
  • Judicial Review and Statutory Appeal
  • Criminal Law
  • Defence litigation/dispute resolution

Representative Matters

Representing clients in a High Court case stated 

Representing a major professional disciplinary body before the High Court

Representing charities clients before the Valuation Tribunal

  • LinkedIn

Areas of Expertise

Public, Regulatory and Investigations

Professional Memberships

Honorable Society of King’s Inns

Legal Services Regulatory Authority


Honorable Society of Kings Inns, BL

Trinity College Dublin, BA Mod