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Message from the Acting Commissioner

Welcome to the website of the New York City Department of Investigation (DOI), the City's independent anti-corruption agency and one of the oldest law enforcement agencies in the country. Our work helps to ensure New Yorkers have the honest government they deserve. 

DOI’s investigations expose and stop corruption, waste, and fraud, and we seek to prevent future misconduct by proposing policy and procedural changes to address the vulnerabilities we uncover. Our public reports provide transparency about our investigative findings and convey our recommendations for necessary changes in City government operations. DOI often partners with state and federal prosecutors as well as other law enforcement agencies on the investigations we conduct; and investigations can result in arrest or disciplinary action, or both.

DOI also investigates potential conflicts of interest that may result in referrals to the Conflicts of Interest Board, the City’s ethics agency, as well as claims of retaliation against employees of agencies and City contractors who report misconduct and are protected by the City’s Whistleblower Law. In addition, DOI provides other critical services to the City, including background investigations for certain City employees and vendor name checks for City-funded vendors. 

We keep the public informed about DOI's work through this website, in the press releases and the public reports we issue, as well as our policy and procedure recommendations that we make as a result of our investigations.

DOI’s work instills confidence in City government, and in the vast majority of City employees who serve New Yorkers every day with dedication and integrity. 

Our mission cannot succeed without the public's participation. City employees and members of the public are often our most valuable source of information – our eyes and ears throughout the City. If you witness corruption, waste, fraud or abuse you can report it to DOI online here  and through our hotline at 212-3-NYC-DOI. 

Combating corruption, fraud, and waste strengthens government and New York City.



Regards,
Christopher Ryan
Acting DOI Commissioner

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Learn more about DOI:
• A full description of the scope of DOI’s authority is contained in the Mission and History section.
• The statutes and laws that preserve DOI’s independence can be found in the Legal and Executive Authority section.