Tatiana R. Martins
  1. Partner

Ms. Martins is a partner in Davis Polk’s Litigation Department. She has extensive experience representing clients in white-collar criminal defense matters, including government enforcement actions, matters involving the Foreign Corrupt Practices Act and internal investigations.

She rejoined Davis Polk in 2018 from the U.S. Attorney’s Office for the Southern District of New York, where she most recently served as Chief of the Public Corruption Unit. She was previously Deputy Chief of that unit and served as an Assistant U.S. Attorney for several years.

In her role as Chief of Public Corruption, Ms. Martins led a team of over 20 prosecutors and other professionals responsible for investigating and prosecuting a wide range of domestic and foreign corruption offenses and frauds against the government.  Ms. Martins successfully oversaw several major investigations and prosecutions during her tenure, including those against Michael D. Cohen for campaign finance violations, bank fraud and tax fraud; NCAA basketball coaches and other individuals for bribery and wire fraud; the former Executive Deputy Secretary to the Governor of New York for bribery and wire fraud related to the “Buffalo Billions” project; and high-level United Nations officials and others for violations of the Foreign Corrupt Practices Act. 

Ms. Martins is also an experienced trial lawyer, and personally prosecuted multiple high-profile cases to jury verdict at the U.S. Attorney’s Office, including those of Sheldon Silver, the former Speaker of the New York Assembly, and Dean Skelos, the former New York Senate Majority Leader, for bribery and other corruption offenses. She also handled numerous investigations involving money laundering, mail fraud and wire fraud, and conducted the corruption investigations into the Office of the Mayor of New York City, and the shutdown by the Office of the Governor of New York State of the Moreland Commission to Investigate Public Corruption.

Work Highlights

  • Represented a large multinational corporation in connection with DOJ and SEC investigations of bribery-related allegations
  • Represented a large multinational corporation as principal associate for debarment issues in connection with investigations by the World Bank, the Inter-American Development Bank, the Asian Development Bank, the African Development Bank, the European Bank for Reconstruction and Development, and the United Nations; also represented the company in responsible contractor hearings in New York and Florida
  • Conducted numerous FCPA investigations, including in Brazil and Mexico
  • Developed and delivered FCPA trainings to clients
  • Conducted international arbitration on behalf of major international oil and gas company
  • Successfully defended a major pharmaceutical company against claims of false advertising in a federal civil trial

Of Note

  • Spent six months as a volunteer at the International Organization for Migration, in Maputo, Mozambique, where she designed and conducted an extensive assessment of migrant workers’ access to HIV/AIDS education, prevention and treatment (2010)
  • Has represented asylum applicants on a pro bono basis in federal immigration court
  • A native speaker of Portuguese, proficient in Spanish

Professional History

  • Partner, Davis Polk since 2018
  • Assistant U.S. Attorney, Southern District of New York, 2012-2018 
    • Chief, Public Corruption Unit, 2017-2018
    • Deputy Chief, Public Corruption Unit, 2016-2017 
  • Associate, Davis Polk, 2005-2009, 2010-2012
  • Law Clerk, Hon. Denise Cote, U.S. District Court, S.D. New York, 2003-2004

Bar Admissions

  • State of New York


  • B.A., UC Berkeley, 1998
    • Phi Beta Kappa
    • summa cum laude
  • J.D., Yale Law School, 2003
    • Editor, Yale Journal of Law and the Humanities


  • Portuguese
  • Spanish