Timothy Sini - Government Investigations & White Collar Defense - Nixon Peabody LLP

Timothy D. Sini



Timothy D. Sini is a member of the Litigation Department, Government Investigations & White Collar Defense practice group, and the COVID-19 Response Team.

Tim brings to his clients a truly unique blend of experience in investigations, litigation, and crisis management. He previously served as an Assistant United States Attorney in the Criminal Division of the U.S. Attorney’s Office for the Southern District of New York under U.S. Attorney Preet Bharara; the District Attorney for the Suffolk County (Long Island) District Attorney’s Office, one of the top 20 largest prosecutors’ offices in the nation; and the Police Commissioner of the Suffolk County Police Department, the 11th largest police department in the nation. Tim has been recognized as an expert in investigations and prosecutions, testifying before the President’s Commission on Law Enforcement & the Administration of Justice; the U.S. House of Representatives, Subcommittee on Counterterrorism and Intelligence; and the U.S. Senate, Committee on the Department of Homeland Security and Government Affairs. He uses his past experience to represent a diverse client base, including entities, individuals, and executives, in all types of investigations, litigations, prosecutions, and crisis management situations.

What do you focus on?

With more than 15 years of experience in government investigations, crisis management, and litigation, I focus my practice on the following areas:

Internal and External Investigations

I handle a diverse array of matters involving government investigations or charges, including by agencies such as the Department of Justice, state attorneys general, and district attorneys. As a former federal prosecutor in the Southern District of New York and as the former Suffolk County District Attorney where I led one of the largest prosecutors’ offices in the nation, I have personally handled and supervised hundreds of complex investigations and prosecutions involving a wide range of crimes, including RICO, public corruption, environmental crime, fraud, financial crimes, organized crime, labor offenses, and much more. My investigative and litigation experience include matters that are multi-jurisdictional and international in scope.

As the former Police Commissioner of the Suffolk County Police Department and as the former Suffolk County District Attorney, I led internal investigations into each agency rocked by high-profile scandals and successfully developed and implemented corrective action plans.

With these unique experiences, I am able to protect my clients’ interests by conducting comprehensive investigations, proactively identifying risks, and developing remedial plans to ensure compliance and minimize future exposure.

Crisis Management

I took over both the Suffolk County District Attorney’s Office and the Suffolk County Police Department in crisis: both agencies were led by individuals who have since been convicted of federal corruption offenses and were using their respective organizations in furtherance of their criminal schemes. As both Police Commissioner and District Attorney, I led massive internal investigations and instituted comprehensive corrective action measures, which restored the integrity and efficacy of both agencies. I also led the Suffolk County District Attorney’s Office during the worst of the COVID-19 pandemic. My proven success in crisis management allows me to swiftly and strategically advise and counsel individuals and entities facing all forms of emergent situations, including criminal, civil, regulatory, and/or reputational in nature.

Trials and Litigation

I’ve personally handled numerous jury trials and other contested court proceedings. My experience includes trying federal felony cases to verdict, involving novel, complex factual and/or legal issues. I leverage this experience to help corporate and individual clients involved in civil and criminal litigation.

Compliance

I assist clients in developing and implementing policies and protocols to ensure compliance with applicable law and regulations and to minimize future risk. As an example, in my government service, I instituted a digital case management system with electronic discovery, artificial intelligence, and data analytics, as well as a series of new policies to ensure compliance with once-in-a-generation law changes. My broad experience in complex investigations and prosecutions coupled with my in-the-trenches reform work positions me well to handle corporate compliance for clients.

What do you see on the horizon?

Expect increased oversight and enforcement in connection with COVID-19–related issues both on the PPP side and in healthcare, as well as the PHE continuing to change its complexion, creating a constantly evolving regulatory environment.

Prior Experience

  • Suffolk County District Attorney’s Office, Suffolk County District Attorney, January 2018–December 2021
  • Suffolk County Police Department, Police Commissioner, November 2015– December 2017
  • Suffolk County Assistant Deputy County Executive for Public Safety, August 2014–November 2015
  • United States Attorney’s Office, Southern District of New York, Assistant United States Attorney, March 2010–August 2014
  • Prior to government service, Tim clerked for a United States District Judge for the Southern District of New York and a United States Circuit Judge for the Second Circuit Court of Appeals. He also worked as a commercial litigation associate at a large international law firm and a litigation boutique

Clerkships

  • United States Court of Appeals for the Second Circuit, Law Clerk for the Honorable Chester J. Straub, August 2008–March 2010
  • United States District Court for the Southern District of New York, Law Clerk for the Honorable William C. Conner, October 2006–September 2007

Representative Experience

  • Counsel pharmaceutical and healthcare clients on the requirements of the Controlled Substances Act.
  • Represent and defend a medical doctor charged federally with healthcare fraud in connection with the provision of COVID-19–related services
  • Represent a medical practice in connection with a New York State Attorney General investigation regarding medical billing
  • Represent founder and former CEO of a security technology company in connection with a private equity dispute
  • Represent and defend pharmaceutical company in products liability litigation
  • Draft policies for companies, including large multinational companies, and counsel them regarding physical security and workplace threats
  • Represent and defend high-profile individuals and companies of all sizes in connection with government investigations, including matters involving securities, healthcare, and financial fraud
  • Counsel FFLs regarding compliance with local, state, and federal firearms laws
  • Represent individuals in connection with the sealing or expungement of their criminal convictions
  • Serve as outside pro bono general counsel for Long Island Council on Alcoholism and Drug Dependency, a regional not-for-profit organization dedicated to helping those suffering from addiction

Schneps Media celebrates New Yorks Power Professionals

amNY Metro | May 19, 2022

Long Island Government Investigations & White-Collar Defense partner Tim Sini is featured in this article as one of New York’s “Power Lawyers” honored by the publisher at an event last week. The article notes that Tim and his fellow honorees come from “diverse backgrounds and from diverse industries making for an incredible opportunity for developing new and meaningful connections.”

Doctor charged with pandemic-related healthcare fraud

Newsday | April 20, 2022

This article covers Long Island Government Investigations & White-Collar Defense partner Tim Sini’s successful bail argument on behalf of a prominent cardiologist accused of healthcare fraud. A federal judge granted the bail request and allowed the doctor to continue billing claims to Medicare and other federal healthcare programs while his case is pending. The NP team representing the doctor also includes Long Island Healthcare partner Michele Masucci and associate Michal Ovadia.

Power players

Long Island Business News | April 14, 2022

This article covering a trend of prominent Long Island attorneys joining BigLaw firms from public sector and in-house roles features Long Island Government Investigations & White-Collar Defense partner Tim Sini for his arrival to NP this year, quoting Tim on his reasons for joining the firm. The article also quotes Long Island office managing partner Allan Cohen on how Tim’s prior experience benefits NP.

Thieves hit on a new scam: Synthetic identity fraud

Stateline (The Pew Charitable Trusts) | April 07, 2022

This article on synthetic identity fraud, which combines real Social Security numbers with mismatched or phony names to create new identities, quotes Long Island Government Investigations & White-Collar Defense partner Tim Sini on how law enforcement agencies across states usually need to cooperate on related investigations. The article mentions Tim’s role in investigating a major scheme when he was Suffolk County (NY) District Attorney.

People on the move

Crain’s New York Business | February 14, 2022

This roundup of notable moves and hires highlights the recent arrival of Long Island Government Investigations & White-Collar Defense partner Tim Sini to the firm, noting details of his practice as well as his former roles as a federal prosecutor and as district attorney and police commissioner for Suffolk County, New York.

Prosecutor moves highlight brisk demand for white-collar work

The National Law Journal | February 02, 2022

This article, which covers the growing shift among former federal and state prosecutors to join private practice, includes the arrival of Long Island Government Investigations & White-Collar Defense partner Tim Sini to NP. The article features insight from both Tim and GIWC practice group leader Rob Fisher, of Boston, on the anticipated surge of enforcement activity that could be driving this trend, and the networking among former prosecutors that often helps guide them to top law firms.

As LI's legal landscape shifts, Nixon Peabody adds Sini

Innovate LI | February 01, 2022

The following article comprise additional news coverage on Long Island Government Investigations & White-Collar Defense partner Timothy Sini and his arrival to the firm. Tim discusses his past experience as an assistant United States attorney, district attorney, and police commissioner, as well as his points of focus at the firm and NP’s growing GIWC group. Long Island office managing partner Allan Cohen, of the Healthcare group, is quoted on the unique and diverse experience that Tim brings to NP.

Sini joins Nixon Peabody

Long Island Business News | February 01, 2022

The following article comprise additional news coverage on Long Island Government Investigations & White-Collar Defense partner Timothy Sini and his arrival to the firm. Tim discusses his past experience as an assistant United States attorney, district attorney, and police commissioner, as well as his points of focus at the firm and NP’s growing GIWC group. Long Island office managing partner Allan Cohen, of the Healthcare group, is quoted on the unique and diverse experience that Tim brings to NP.

Nixon Peabody adds ex-Long Island DA to white collar team

Law360 | February 01, 2022

The following article comprise additional news coverage on Long Island Government Investigations & White-Collar Defense partner Timothy Sini and his arrival to the firm. Tim discusses his past experience as an assistant United States attorney, district attorney, and police commissioner, as well as his points of focus at the firm and NP’s growing GIWC group. Long Island office managing partner Allan Cohen, of the Healthcare group, is quoted on the unique and diverse experience that Tim brings to NP.

Long Island News Radio

WRCN-FM | February 01, 2022

The following news coverage features the arrival of Long Island Government Investigations & White-Collar Defense partner Timothy Sini. Tim discusses his background as a former assistant United States attorney, district attorney, and police commissioner, as well as his enthusiasm to maintain his local roots amid NP’s international reach. Long Island office managing partner Allan Cohen, of the Healthcare group, is quoted on Tim’s impressive experience and the strengths he brings to the firm.

Ex-Suffolk County DA Tim Sini joins big law firm

Newsday | January 31, 2022

The following news coverage features the arrival of Long Island Government Investigations & White-Collar Defense partner Timothy Sini. Tim discusses his background as a former assistant United States attorney, district attorney, and police commissioner, as well as his enthusiasm to maintain his local roots amid NP’s international reach. Long Island office managing partner Allan Cohen, of the Healthcare group, is quoted on Tim’s impressive experience and the strengths he brings to the firm.

Contact

Timothy D. Sini

Partner

Long Island

Phone: 516-832-7655

New York

Phone: 212-940-3796


Fax: 833-875-0420

Brooklyn Law School, J.D., magna cum laude

American University, B.A., magna cum laude

Federal Bureau of Investigation National Executive Institute Certificate in Executive Leadership, Law Enforcement (2017)

Harvard University, John F. Kennedy School of Government, Decisionmaking Certificate, Executive Education (2017)

New York

  • 2022 Schneps Media Power Lawyer Award
  • Board of Directors, Boy Scouts of America, Suffolk County Council
  • Board of Trustees of Family & Children's Association
  • Former Board Member, White House’s Office of National Drug Control Policy, New York/New Jersey Regional High Intensity Drug Trafficking Area (HIDTA) Team
  • Former Adjunct Professor, Touro Law Center & St. Joseph’s College
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