White-collar crime in Ireland

A&L Goodbody

A&L Goodbody has extensive experience advising corporate clients on internal and regulatory investigations, whistleblowing complaints, dawn raids, anti-money laundering policies, and export controls and sanctions issues. The team has experience in dealing with the authorities across a wide range of jurisdictions, including the US, the EU, Australia and Russia. Kenan Furlong, who has particular expertise in corporate reputation management, and Joe Kelly, whose practice covers both cross-jurisdictional and local regulatory investigations, lead the practice. Katie O’Connor focuses on bribery and corruption matters, while Dario Dagostino is particularly experienced in investigations and enforcement proceedings in the financial services sector, and associate Louise Byrne advises on government and internal investigations and prosecutions.

Practice head(s):

Kenan Furlong; Joe Kelly

Work highlights

  • Advised the former chairman of a large organisation on various investigations.
  • Assisted a financial institution with a long-running regulatory investigation and ancillary litigation.
  • Advised a multinational company on the Irish aspects of a regulatory investigation and litigation.

Mason Hayes & Curran

Noted for its 'wide breadth of knowledge and experience', Mason Hayes & Curran counts a number of major technology and financial services companies among its clients. The team has experience of representing clients in public inquiries into corruption and regulatory and internal investigations, including multi-jurisdictional matters. It also advises on regulatory compliance and the drafting of anti-bribery and corruption policies. Practice heads Emer Gilvarry and Liam Guidera, who has significant experience in public inquiries and tribunals, are singled out for their 'keen judgement'. Colin Monaghan has particular expertise in investigations in the financial services and technology sectors, John O’Leary specialises in data investigations, and senior associate Conor O’Leary has experience in investigations in the financial sector. The team was further strengthened by the arrival of Muireann Dennehy, who joined from Jones Day in London.

Practice head(s):

Emer Gilvarry; Liam Guidera


Liam Guidera is exceptional.

The keen judgement of Liam Guidera and Emer Gilvarry sets the team apart. Their clear strategic oversight and good sense permeates this practice. They both have an ability to guide and direct a client toward options that are prudent and efficient.

Liam Guidera has a poise and grace that commands respect. He has a reputation for shrewd advice and clear thinking. His judgement and discretion are vital.

Emer Gilvarry operates at the highest level of discretion and possesses the energy and wisdom needed to transform complex, fluid situations into clear, calm advice.

The Mason Hayes & Curran team have a wide breadth of knowledge and experience that allows them to provide exceptionally thoughtful advice. In addition to high-end expertise and strategic knowledge in the area of investigations, tribunals and commissions, the firm can draw on specialised sector-specific expertise to ensure that advice is informed and knowledgeable.

Liam Guidera has enormous experience in addressing the complex legal issues that arise in high-profile investigations and inquiries. In addition to his deep knowledge of the legal issues and evidential matters that will arise, he has an extremely effective strategic and personal approach that ensures the needs of his clients are promoted and protected.

Liam Guidera is one of the most experienced practitioners in the field of white-collar crime in this jurisdiction. His expertise and strategic insight was invaluable.

As well as providing strategic leadership, Liam Guidera was always available to counsel and clients.

Associates Conor O’Leary, Orla O’Leary and Shane Glynn are excellent.

Key clients



International Transport Workers Federation

Ulster Bank Ireland DAC


Central Bank of Ireland

Trinity College Dublin

National Museum of Ireland

Work highlights

  • Acted for the International Transport Workers’ Federation in proceedings against the Irish government relating to human trafficking in the Irish fishing industry.
  • Acting for Neil Monaghan and Caroline Meenan in a partnership dispute involving significant commercial and development property assets.
  • Representing the Quinn family in high-profile proceedings against the Irish Bank Resolution Corporation (in special litigation).

McCann FitzGerald

McCann FitzGerald's 'impressive' team handles enforcement actions (including cross-jurisdictional matters) for government regulatory bodies and agencies and represents corporate clients in investigations. The practice has expertise in prosecutions for fraud, bribery and corruption and regulatory and internal investigations, as well as providing advice on compliance, whistleblower policies and sanctions. Terence McCrann and the 'outstanding' Megan Hooper jointly lead the team. Other key contacts include Brian Quigley, who has expertise in investigations in the insurance sector; Seán Barton, who has extensive experience in public tribunals and inquiries; the 'superb' Karyn Harty, who specialises in banking investigations and regulatory compliance in the financial sector; and Audrey Byrne and Michael Coonan, who have expertise in civil fraud and asset-tracing investigations and litigation.

Practice head(s):

Terence McCrann; Megan Hooper


A team that is responsive, diligent and ensures your problems are their problems. They stand out for their strength and depth.

Megan Hooper is an outstanding lawyer. She is very approachable and knowledgeable, and straddles the world of civil, regulatory and criminal consequences with ease.

Very impressive. Extraordinary strength in depth. Tactically very good. On top of the detail and the administration of the piece of litigation and the regulation. Very good at hand-holding and taking you through the process.

Karyn Harty is superb. She is on top of everything and you have a real sense of confidence when you’re with her.

Megan Hooper is very user-friendly.

Key clients

INM plc

Central Bank of Ireland

Irish Bank Resolution Corporation (in Special Liquidation)

Voluntary Health Insurance / VHI

Vodafone Ireland Limited

Road Safety Authority

Work highlights

  • Advising INM plc on a complex range of regulatory challenges, including the appointment of Companies Act inspectors to the company, an investigation by the Office of the Data Protection Commissioner, protected disclosures and a series of large data subject access requests.
  • Acted for the Irish Bank Resolution Corporation (In Special Liquidation) in long-running litigation brought by the Quinn family.
  • Acting for the Road Safety Authority in a range of prosecution and enforcement-related issues.

William Fry

William Fry has 'in-depth and extensive expertise' in regulatory investigations involving corporate, financial, environmental, data protection and competition matters. The team also has significant experience of cross-border litigation involving allegations of fraud and other criminal offences. Clients include multinationals, financial institutions, public bodies and high-net-worth individuals. Practice head Owen O’Sullivan's experience includes shareholder and investment disputes and claims for fraud and mis-selling; Lisa Carty has particular expertise in financial services inquiries, investigations and litigation; Garrett Breen specialises in regulatory litigation; and Paul Convery, who 'analyses matters clearly and comprehensively', handles domestic and cross-jurisdictional disputes, including fraud proceedings. 'Efficient and effective' consultant Laura Murdock is noted for her experience representing clients before tribunals and statutory inquiries.

Practice head(s):

Owen O’Sullivan


The team have an in-depth and extensive expertise in the area, providing expert advice to clients.

Paul Convery analyses matters clearly and comprehensively.

Work highlights

  • Acting for a client which incurred substantial losses in the Madoff Ponzi scheme in cross-jurisdictional proceedings involving allegations of fraud, misrepresentation, negligence and breach of fiduciary duties.
  • Acting for a financial institution in relation to allegations of criminal offences, including deception, aiding and abetting, and incitement.
  • Representing a high-profile company director in a Central Bank investigation.

Arthur Cox

The 'excellent' team at Arthur Cox is active in the commercial and corporate sphere, advising on shareholder and boardroom disputes and investigations. The team also has extensive experience in high-profile statutory inquiries across a range of sectors, and international investigations involving regulatory authorities in the US and the EU. The practice is led by Joanelle O’Cleirigh, who has a strong reputation for representing clients in public inquiries; Greg Glynn, who has extensive experience in investigations by foreign regulators; and Richard Willis, whose practice covers internal, regulatory and financial crime investigations. Deirdre O’Mahony is also noted for her expertise in regulatory investigations in the financial sector.

Practice head(s):

Greg Glynn; Joanelle O’Cleirigh; Richard Willis


Arthur Cox have outstanding expertise and capabilities in dealing with white-collar crime matters.

Solutions are presented with a holistic approach in mind and in a clear and concise manner, with a focus in seeking an optimal solution to an identified issue or problem.

Excellent, professional, highly intelligent and dedicated team which delivers the highest standard of advice.

The team stand out for their intelligence, competence, dedication and commercial good sense. They are personable and clear communicators.’

The main strength for us is the manner in which the various departments inter-relate seamlessly when the need arises.

Joanelle O’Cleirigh in particular stands out for her availability. The team’s commitment to offer us the best possible service is evident in all our dealings with them.

Key clients

Island Capital Management Services Limited

Eurotoaz Ltd


Deloitte Ireland LLP

Work highlights

  • Acting for Island Capital Management Services in judicial review proceedings relating to the Commission of Investigation into the IBRC-Siteserv deal.
  • Defending Eurotoaz against proceedings issued by four Caribbean companies in relation to a “raider attack” on a Russian company.
  • Acting for Tusla in the Tribunal of Inquiry into protected disclosures.

Byrne Wallace

Byrne Wallace has experience of regulatory investigations and high-profile public inquiries, and has both prosecuted and defended criminal and regulatory enforcement actions. Clients include companies, directors and private individuals, and state agencies. The practice is jointly led by Jon Legorburu, who specialises in regulatory disputes and investigations and project-based investigations in the financial services, healthcare and insurance sectors, and the 'hands-on and knowledgeable' Séan O’Donnell, who has expertise in regulatory enforcement and investigations, litigation and data-related matters.

Practice head(s):

Jon Legorburu; Seán O’Donnell


This firm is impressive since they openly discuss differences of opinion they have with you and involve you in the thought processes and conclusions they come to. They bring with them the right people required to facilitate this work and are direct and informative.

They talk to you as an equal and present their knowledge and experience in a fair and balanced way that makes them credible.

This practice is attentive to its clients from the outset and does its work in a clinical and efficient manner. The team are calm and conscientious in their approach.

Seán O’Donnell has extensive experience of advising and representing clients in white-collar crime situations and related areas.

The team navigate the various regulatory issues and statutory obligations that arise in this arena in an efficient and careful manner. This ensures that clients are provided with the highest quality service where situations of risk are managed calmly, expeditiously and correctly. The ability to see problems in advance and resolve them is a key skill possessed by the team, as is their knowledge of the state regulators.

Quality of service, accessibility of partners, speed of turnaround, breadth of practice areas

We regard Seán O’Donnell as a leading figure in the area of white-collar crime. His practical advice cuts to the chase in what can be complex regulatory areas.

Very much partner led with easy access to principals and quick turnaround times.

Seán O’Donnell is a very hands-on and knowledgeable lawyer who provides clear and unambiguous advice.


Matheson's 'solutions-driven and efficient' team has expertise in defending clients against fraud, bribery and corruption claims; handling significant regulatory investigations; and advising on regulatory breaches. The team also advises corporate clients on their reporting obligations, dawn raids and managing information requests, and internal investigations. Claire McLoughlin, who specialises in large-scale litigation, particularly involving financial services and technology disputes, and Karen Reynolds, who has extensive expertise advising clients in regulated sectors on inspections, investigations and enforcement actions, lead the practice. The team was strengthened by the arrival of senior associate Ciara Dunny, who acts for domestic and international clients, particularly in the financial services sector, from Addleshaw Goddard in London.

Practice head(s):

Claire McLoughlin; Karen Reynolds


Matheson are solutions driven and efficient.

Matheson are familiar with all aspects of case law and attentive to the client’s needs. They have very skilled legal practitioners who provide clients with an efficient and effective range of options that focus on combining the optimum legal and business solutions possible.

Key clients

Breccia (part of the Parma Group)

Chartered Accountants Ireland

State Street

Work highlights

  • Acted for Petroceltic Investments in its defence and counterclaim in High Court proceedings resulting from the alleged breach of a consultancy agreement.
  • Defending Parma Investments in shareholder oppression proceedings.