Catherine Allen

Mason Hayes & Curran


About Catherine Allen

Catherine is a public and information law specialist, recognised as a leader in her field by the Legal 500 Directory. Catherine advises a range of regulators on their public law, judicial review and information law work. She is particularly well known for her work in the areas of investigations and fair procedures. She is a specialist in judicial review proceedings and regularly advises public bodies on their powers and duties, as well as acting for those seeking to challenge the decisions of public bodies. 

Catherine heads MHC’s Professional Regulatory group, managing some of the team’s most complex investigations and presents cases before Fitness to Practise Committees. 

Catherine has particular expertise in information law as it relates to public and third sector bodies, including advising on the FOI Act and the GDPR.  


  • Public and Administrative Law
  • Regulatory Law
  • Professional Disciplinary Law
  • Litigation
  • Freedom of Information and Data Protection