White-collar crime in Ireland

A&L Goodbody LLP

A&L Goodbody LLP's 'hugely knowledgeable' white-collar criminal law practice team is involved in some of the most high-profile matters currently before the Irish courts. The groups work includes advising on alleged breaches of environmental and financial regulations, as well as allegations of corruption and other criminal offences. The team is also experienced in cross-border matters, working alongside firms in foreign jurisdictions. The practice is led by Kenan Furlong and Joe Kelly. Furlong has a broad practice and is the only Irish lawyer to have acted as Chairman of the International Bar Association's Business Crime Committee. Katie O’Connor is another key figure, with a focus on bribery and corruption. Associate Louise Byrne provides additional support.

Practice head(s):

Kenan Furlong; Joe Kelly

Other key lawyers:

Katie O’Connor; Dario Dagostino; Louise Byrne; Ciarán Ó Conluain; Mark Devane


‘The team are hugely knowledgeable, give detailed and methodical advice, and keep us on the right track. They are unfailingly pleasant and willing to put in big hours to help us meet deadlines and timing demands.’

‘Dario Dagostino is simply an oracle on regulator engagement. Clever, hardworking, and massively experienced, he is an exceptionally safe pair of hands. Mark Devane is practical, clever and thorough. Nothing shocks Joe Kelly. He has literally seen it all and done it all. He has a pleasant manner and a very commercial and practical outlook. As well as being an extremely capable lawyer, Ciarán Ó Conluain is an extremely affable guy who always takes time to ensure his advice is understood and to talk to the client about their concerns and questions.’

Key clients

Leslie Buckley

Volkswagen Group Ireland Limited and Volkswagen Bank GMBH

Permanent TSB

Work highlights

  • Advising the former Chairman of INM PLC on high-profile allegations regarding his work for INM.
  • Advised Permanent TSB on all aspects of a Central Bank of Ireland enforcement investigation regarding customers’ entitlements to tracker mortgage interest rates, a related redress programme and customer litigation.
  • Acting for the Volkswagen Group in dealing with all Irish regulatory and litigation aspects of the NOx emissions issue.

Mason Hayes & Curran LLP

Mason Hayes & Curran LLP's white-collar crime practice is involved in a range of complex matters in the space. The firm's client base includes technology companies, local authorities and charities. The group is frequently involved in the burgeoning areas of breaches of data privacy law and violations of court orders on social media sites. Liam Guidera  heads the practice, which includes recently promoted partner Shane Reynolds. Colin Monaghan specialises in litigation involving financial institutions and Peter Johnston and senior associate Conor O’Leary are other names to note.

Practice head(s):

Liam Guidera

Other key lawyers:

Colin Monaghan; Peter Johnston; Muireann Dennehy; Conor O’Leary; Shane Reynolds


‘Excellent client focus – they listen to fully understand before responding. Excellent capability in Investigations & White Collar Crime and understanding of the Irish market and regulation.’

‘Muireann Dennehy has expertise in dealing with criminal and regulatory authorities, is widely networked and an excellent speaker. Liam Guidera offers expertise in commercial matters and arbitration; he is a polished professional for mediation.’

‘The MHC team is particularly strong in relation to data protection related investigations/inquiries.’

‘The team has a wide base of relevant experience and expertise which allows clients to benefit from practical, dependable and appropriate advice. ’

‘Liam Guidera provides exceptional client service. He is imperturbable in the face of unexpected issues and his calm, sage advice is incredibly reassuring for clients. ’

‘The white-collar crime team at MHC comprises a group of people with immense personal experience expertise in the field, combined with an unrivalled attention to detail. In addition, the partners and associates at MHC are available, accessible and invariably helpful. The team manages to provide the Grade A standard of service that one would expect from a firm of its calibre, grappling with complicated points of law and mastering the challenges posed by them.’

‘Liam Guidera is an outstanding solicitor who gives his clients the best possible service. Liam has accumulated immense experience in the sphere of white-collar crime developed from his vast professional experience of litigation in the Irish courts, of tribunals, commissions of inquiry, investigations and regulatory bodies. He is recognised across the industry as one of the very best in the business. Conor O’Leary is a first-class solicitor who is fast developing a reputation as one of the rising stars in the area of white-collar crime. He is invariably reliable, unflappable, and rapidly gets to the heart of complex issues.’

‘In-depth knowledge and experience of the investigation and regulatory process. Tenacious in representing clients. Excellent backup from the firm’s multi-disciplinary team.’

‘Liam Guidera is vastly experienced with an exceptional sense of judgement. ’

‘MHC have a market leading specialist team with in-depth knowledge of white-collar and regulatory matters, leaving the firm well placed to advise on complex multi-faceted and multi-jurisdictional matters.’

‘Muireann Dennehy brings significant specialist international expertise to the team, with an impressive cv acting for large multi-nationals in complex cases. Liam Guidera is a seriously experienced practitioner with experience in all forms of investigations and litigation, including Tribunals of inquiry. An astute lawyer who brings calmness and clarity of approach to even the most complex of problems.’

‘Understanding the issues in a very complicated sector ’

‘Shane Reynolds has very quickly developed an in depth knowledge of the extensive regulatory environment in which we work and an understanding of the issues involved.’

Key clients

Facebook Ireland Limited

Various Local Authorities

International Transport Workers’ Federation (ITF)

State Prosecution Agencies, across multiple disciplinary sectors and industries

L. Behan Aggregates and Recycling Limited

Central Bank of Ireland

Trinity College Dublin

Allied Irish Banks plc

Bank of Ireland

KBC Bank

Catholic Archdiocese of Dublin

National Museum of Ireland

Health Service Executive

Gas Networks Ireland

Commission for Regulation of Utilities

Child and Family Agency (TUSLA)

Trioplast SAS Limited

Work highlights

  • Acting for Facebook in regulatory and investigative issues.
  • Representing International Transport Workers’ Federation in seeking to expose and eliminate instances of trafficking in the Irish fishing industry.

McCann FitzGerald LLP

McCann FitzGerald LLP's white-collar criminal law practice has a proven track record in  complex, high-stakes work for clients in both the private and public sectors. Recent work has included cross-border litigation involving allegations of criminality, conducting internal investigations for companies, and representing clients in investigations by regulators. The practice is led by Terence McCrann, who also leads the firm's dispute resolution team. Brian Quigley has broad experience in this area and is currently advising on a number of multi-jurisdictional matters; Karyn Harty, Sean Barton, Michael Coonan, and Megan Hooper are also key contacts.

Practice head(s):

Terence McCrann

Other key lawyers:

Brian Quigley; Karyn Harty; Sean Barton; Michael Coonan; Megan Hooper; Audrey Byrne


‘A key attraction of this practice is the fact that they are actively involved in many of the high profile matters occurring in this space. This means that they are fully up to speed in all that is happening in this field and have insights above and beyond their peers.

‘Audrey Byrne excels in her field and provides highly savvy and seasoned business-friendly and practical advice. Her incredible wealth of experience and reasoned and clear advice inspires great confidence in our boardroom and beyond. She’s my first port of call in a storm.’

‘Understanding of clients’ requirements and personalities resulting in bespoke as well as corporate engagement. Legal and technical skill top rate but equally important an ability to judge the ‘players’ on the other side and develop a holistic approach to the issues.’

‘Karyn Harty is highly experienced technically. High degree of empathy and patience deployed to mentor and advise clients who see the world primarily through business transactions and struggle with the archaic and inefficient legal processes in Ireland. Strong personal commitment to the person not just as a client but a person. Creative in case management and negotiation pushing the boundaries to the benefit of not just the client but the legal processes and ultimately justice.’

Key clients

INM plc

Central Bank of Ireland

Irish Bank Resolution Corporation (in Special Liquidation)

Voluntary Health Insurance / VHI

Road Safety Authority

Charities Regulator

Sea Fisheries Protection Authority

National Asset Management Agency


Data Protection Commission

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.
  • Acting for the majority shareholders in a multibillion-dollar Russian chemical company in conspiracy proceedings before the Commercial Court against, among others, a minority shareholder in the target and an Irish company, Eurotoaz, regarding an attempted illegal take-over of the clients’ shares in the target (a phenomenon known as a raider attack).

William Fry

William Fry acts for clients facing challenging allegations of white-collar crime including fraud, insider dealing, data breaches and money laundering. The team is a popular choice for clients from the the financial services industry. The practice is led by Owen O’Sullivan, who also leads the firm's dispute resolution practice. Other key partners in the team include Lisa Carty, whose experience in advising financial sector clients includes assisting companies involved in a parliamentary banking inquiry. Garrett Breen is currently involved in a number of cross-border issues and Paul Convery is 'innovative and practical'. Laura Murdock was promoted to partner in 2020.

Practice head(s):

Owen O’Sullivan

Other key lawyers:

Lisa Carty; Garrett Breen; Paul Convery; Laura Murdock


‘An extremely professional team providing expert advice’

‘Paul Convery is a talented lawyer who is very hands on, innovative and practical. He is exceptionally responsive to clients providing clear, expert advice.’

Work highlights

  • Acting for defendants in a case where the claimants are attempting to prevent enforcement of a criminal fraud judgment against those claimants in another jurisdiction.
  • Advising a client in respect of losses in excess of €3.5bn incurred as a result of the Madoff Ponzi scheme.

Arthur Cox

Arthur Cox handles a broad range of white-collar crime matters, including advising on criminal prosecutions, investigations by regulators, and shareholder disputes. The team's work includes cross-border issues, acting for both Irish and international clients. In addition to handling contentious matters, they also advise on compliance with regulations. The firm has also established a dedicated dawn raid response group to help clients respond to dawn raids by regulators. The practice is jointly headed by Joanelle O’Cleirigh, who is 'an expert in her field', and Richard Willis, who has 'a constant eye on the big picture'. Ryan Ferry was promoted to partner in 2020.

Practice head(s):

Joanelle O’Cleirigh; Richard Willis

Other key lawyers:

Deirdre O’Mahony; Ryan Ferry; Ciarán Egan; Conall O’Shaughnessy


‘Highly responsive, deeply experienced.’

‘Richard Willis offers 24/7 availability, strategic advice with a constant eye on the big picture. Associate Conall O’Shaughnessy is very responsive, clear, confident advice.’

‘Joanelle O’Cleirigh is a pleasure to deal with and clearly an expert in her field. She advised effectively, comprehensively and efficiently on how laws governing financial crime apply to our industry.’

Key clients

Yuzhu Kang (Kang Family Worldwide Group)

Eurotoaz Limited

Deloitte Ireland LLP

Work highlights

  • Acting for Eurotoaz Ltd and one of its directors in the defence of proceedings arising from a so-called “raider attack” on a Russian company, valued at approximately $3bn.
  • Advising clients on all aspects of internal and external investigations, including advising in respect of the identification of relevant interviewees and the interview process, engagement with the regulator, regulatory and criminal reporting obligations to the Office of the Director of Corporate Enforcement (ODCE), An Garda Siochána (the Irish police) and other regulators; and internal risk analysis and governance issues.
  • Advising on investigations conducted by the Health and Safety Authority (HSA) and acting in the defence of prosecutions brought by the HSA, including advising on advising on interviews under caution with the Health and Safety Authority and, in particular, its employees’ constitutional protection against self-incrimination.

ByrneWallace LLP

ByrneWallace LLP's white-collar crime practice is experienced in advising clients from a range of sectors on investigations, involving both  regulatory and criminal issues. In addition to acting for the private sector in defending against allegations, the practice also advises a number of state agencies on their investigations. Jon Legorburu is an experienced litigator and Seán O’Donnell has a background in criminal law and also advises clients on regulatory matters, including allegations of breaches of data protection and environmental regulations.

Practice head(s):

Jon Legorburu; Seán O’Donnell

Other key lawyers:

Mark O’Shaughnessy

Eversheds Sutherland

In addition to representing clients facing allegations of white-collar crime, Eversheds Sutherland acts for a number of regulators, advising on investigations as well as the drafting of new powers. Pamela O’Neill leads the team, which is praised for its 'consistent expertise in all aspects of prosecutions and civil court proceedings'. Norman Fitzgerald, Stephen Barry and Eoin Mac Aodha are other key figures.

Practice head(s):

Pamela O’Neill

Other key lawyers:

Norman Fitzgerald; Stephen Barry; Eoin Mac Aodha


‘Eversheds have provided excellent support to us in enforcement actions (criminal and civil) in certain cases. They have shown a deep understanding of the procedures involved and assisted us in preparing in an efficient and organised manner for cases taken. Eversheds have demonstrated consistent expertise in all aspects of prosecutions and civil court proceedings.’

‘Eoin Mac Aodha has been consistently reliable and responsive to our needs. He takes a pragmatic and wise approach to litigation and provided measured counsel in occasionally difficult circumstances.’

Key clients

Quinn Family

Ernst & Young (EY)

Commission for Communications Regulation

Residential Tenancies Board

Student Universal Support Ireland (“SUSI”)

JW Accountants

Work highlights

  • Acted for the five adult children of Sean Quinn Senior (formerly Ireland’s richest man) in successfully settling their long-running legal battle with the Irish Bank Resolution Corporation (IBRC).
  • Acting for EY in defending Commercial Court proceedings brought by IBRC against EY relating to its role as the former auditors of Anglo Irish Bank plc (as it was then known as).
  • Serving as the sole legal provider to the RTB, the regulator for all residential tenancies in the state; where we provide a range of advice including the introduction of administrative sanctions procedure and prosecutorial function.


Matheson's white-collar crime practice is part of the firm's wider commercial litigation and dispute resolution practice, and represents clients in the defence of allegations of criminality and regulatory breaches. The practice also acts for clients that have been affected by white-collar crime, such as the victims of cyber-crime. Karen Reynolds heads the practice. Litigator Nicola Dunleavy and senior associate Ciara Dunny are other key names.

Practice head(s):

Karen Reynolds

Other key lawyers:

Nicola Dunleavy; Tony O’Grady; Connor Cassidy; Ciara Dunny


‘We instructed Matheson in connection with a complex fraud claim against a former senior executive/country manager. Karen Reynolds was the lead partner. She was excellent. An excellent communicator including a great ability to distil complex areas of law in a concise and clear way. She demonstrated a great ability to instil confidence in Board members and senior executives. As a result, Karen’s advice was greatly valued in this complex sensitive matter and her involvement and wise counsel was the determining factor in reaching a satisfactory conclusion. Also, from the General Counsel’s point of view, she was a pleasure to work with.’

Key clients

Southwire Company LLC