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Peter Koski represents individuals and companies in sensitive, high-stakes government investigations and enforcement actions, internal investigations, and regulatory enforcement matters. Prior to joining the firm, Mr. Koski served as the Deputy Chief of the U.S. Department of Justice’s Public Integrity Section, where he helped manage a team of over 30 attorneys responsible for investigating and prosecuting corruption across the country.

Mr. Koski has a depth of experience investigating, bringing to trial, and handling on appeal complex white collar matters involving the public and private sectors. He has handled an array of matters relating to violations of the federal laws governing elected and appointed officials, including conspiracy, honest services fraud, bribery, extortion, gratuities, money laundering, insurance fraud, racketeering, obstruction of justice, conflicts of interest, and the Federal Election Campaign Act. He has also argued complex constitutional issues before the courts of appeal. In over a decade of service in the Justice Department, Mr. Koski partnered with numerous U.S. Attorney’s Offices and worked closely with senior officials at over 25 federal agencies. Mr. Koski has tried over two dozen bench and jury trials, appeared in court in over a dozen districts across the country, and has handled corruption matters on five continents.

Memberships and Affiliations

  • Co-Chair of the ABA White Collar Crime Subcommittee on Public Corruption 
  • Leadership Council (former Member of the Board of Trustees), American Inns of Court
  • Member, Edward Bennett Williams Inn of Court
  • Honorary Member, The Commercial Bar Association (United Kingdom)
  • Former Member, OECD’s Anti-Corruption Network Law Enforcement Advisory Board
  • Former Member, OECD’s Advisory Group for the Anti-Corruption Network for Eastern Europe and Central Asia Thematic Review on Criminalization of Corruption
  • Member, Hispanic National Bar Association
  • Member, Hispanic Bar Association of the District of Columbia

Previous Experience

  • U.S. Department of Justice, Criminal Division, Public Integrity Section, Deputy Chief (2011-2018) and Trial Attorney (2006-2011)
  • Attorney General’s Award for Distinguished Service
  • Assistant Attorney General’s Award for Exceptional Service
  • Assistant Attorney General’s Award for Distinguished Service
  • Inspector General’s Collaboration Award
  • Assistant Attorney General’s Award for Ensuring the Integrity of Government
  • Federal Bar Association’s Federal Younger Lawyer of the Year Award   
  • Temple Bar Scholar (United Kingdom)
  • Rotary Ambassadorial Scholar (Ecuador)