Eoin P. Beirne

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  • Brooklyn Law School (JD, cum laude)
  • Trinity College (BA, Economics)

Bar Admissions

  • Massachusetts
  • United States Court of Appeals for the First Circuit
  • United States District Court for the District of Massachusetts

Eóin is a litigator specializing in government investigations and enforcement proceedings. He has successfully tried cases in federal and state courts and represents clients dealing with the DOJ, SEC, FINRA and other regulatory and enforcement bodies.

Eóin has conducted numerous internal investigations both at the client’s own initiative and following receipt of a subpoena or other notice of a government investigation in the areas of health care fraud and abuse, the False Claims Act, insider trading and the Foreign Corrupt Practices Act among others. Eoin also advises clients responding to cyber-attacks and the Computer Fraud and Abuse Act.

During law school, Eóin served as a student assistant district attorney, was a member of the Moot Court Executive Board, was elected to the Order of Barristers and interned for Judge Reena Raggi in the Eastern District of New York.

Eóin serves on the boards of several organizations dedicated to the conservation of fish and the rivers and oceans in which they live.

Representative Matters   

  • Secured no charge for government official in wide-ranging public corruption investigation
  • Represented numerous witnesses before federal grand jury in a national health care fraud investigation
  • Judgment of acquittal granted by judge following the close of the government’s evidence in a federal criminal jury trial for wire fraud and money laundering
  • Conducted a comprehensive internal investigation into allegations of fraud by a whistleblower at a military contractor
  • Conducted an electronic investigation following allegations of wrongdoing at a quasi-governmental organization
  • Part of the trial team that won a complete acquittal following a four-week federal criminal trial
  • Drafted memoranda of law that resulted in a no-jail sentence in a federal election fraud case following entry into plea agreement
  • Drafted materials that resulted in no charges against an individual investigated for insider trading

Recognitions & Awards

  • Massachusetts Super Lawyers: Criminal Defense: White Collar (2017)
  • Massachusetts Super Lawyers: Rising Star – Criminal Defense: White Collar (2013 - 2016)

Professional & Community Involvement

  • Member, Boston Bar Association
  • Member, Federal Bar Association
  • Board Member, Massachusetts Association of Criminal Defense Lawyers (MACDL)
  • Member, American Bar Association’s Public Corruption and Extortion Subcommittee and the Criminal E-Discovery Taskforce