Mason Hayes & Curran LLP’s investigations and white-collar crime team offers wide-ranging cross-industry expertise, assisting domestic and international clients with regulatory scrutiny, compliance strategy and risk mitigation. At the helm is Liam Guidera, who is well-equipped to handle corporate misconduct investigations and fraud matters. Active in major internal investigations and contentious corporate crime mandates, the team’s expertise covers bribery, corruption and regulatory breaches. It is also noted for its work across the financial services, medical, pharmaceutical and not-for-profit sectors.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘This team are very experienced in high profile advisory work and litigation involving regulatory law. I would highly recommend this team for any client in need of robust assistance with a complex matter.’
- ‘From the moment we engaged Liam Guidera it was clear that we were in the best hands. Liam's calm and supportive approach throughout the process, combined with his vast experience and knowledge in this space truly stands out.’
- ‘Led by the superb and highly experienced white-collar crime lawyer Liam Guidera, Mason Hayes & Curran LLP offer an individual unmatched white-collar crime offering to its clients. Clients can have confidence in the expert analysis and strategic advice provided by the highly experienced and approachable white-collar team.’
- ‘The team is incredibly dynamic, engaged and has matchless expertise. From the outset they zero in on the core issues in often immensely technical and challenging scenarios, and quickly figure out the optimal solution and the best plan of action to get there.’
- ‘Superb legal knowledge and great tactical and strategic advice provided by the whole team, combined with the necessary excellent personal skills required to take a client confidently through a challenging legal process. The client can have great confidence that they are in the soundest of hands and the advice given will be spot on and second to none.’
- ‘Aimee Carroll has a phenomenal mastery of detail in even the most complex of matters and an encyclopaedic knowledge of the law. She has a laser-like focus on the needs and priorities of clients, and on ensuring their delivery. Aimee is highly strategic and hugely effective.'
Key clients
- Meta Platforms Ireland Limited
- WhatsApp Ireland Limited
- Yahoo EMEA Limited
- Trinity College Dublin
- Football Association of Ireland
- SIS Media Limited
- William Hill
Work highlights
Acting for Meta Platforms Ireland Limited in statutory appeal and judicial review proceedings before the Irish High Court challenging two related decisions issued by the Irish Data Protection Commission in December 2024 following an inquiry imposing fines of €251m and €11m, respectively, on Meta regarding findings of infringements of the EU General Data Protection Regulation.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Practice head
Liam Guidera
Other key lawyers
Colin Monaghan; Peter Johnston; Shane Reynolds; Conor O’Leary; Aimee Carroll