Timothy D. Sini was elected as the Suffolk County District Attorney on November 7, 2017 and assumed office on January 1, 2018. District Attorney Sini immediately began a comprehensive review of the Suffolk County District Attorney’s Office with the objectives of creating a culture of excellence, professionalism and ethical conduct, while launching cutting edge, 21st Century strategies to address the public safety issues of our time. District Attorney Sini is committed to creating a culture of compliance with the highest ethical standards, including creating the first ever Conviction Integrity Bureau in Suffolk County, investing in new training programs for prosecutors and instituting smart prosecutions through the robust collection and analysis of data.
Prior to District Attorney Sini’s election, he served as the 13th Commissioner of the Suffolk County Police Department, which is the 11th largest police department in the nation. As Police Commissioner, Sini restored integrity to the leadership of the Police Department, reduced crime to the lowest level in recorded history, improved community relations, and enhanced the efficiency and effectiveness of the Department through improving processes and investing in technology.
As Police Commissioner, Sini enhanced the Department’s intelligence-led policing model and made collaborating with the Department’s law enforcement and community partners a cornerstone of his administration. During Sini’s tenure as Police Commissioner, crime was reduced to historic levels, with violent crime decreasing more than 15% and overall crime decreasing over 12%. Sini brought the fight against the violent street gang MS-13 to the national stage by making it a top priority of the Department. Through a multi-pronged strategy, the Suffolk County Police Department made well over 300 arrests of MS-13 gang members in just over one year and launched innovative community intervention strategies to prevent vulnerable children from becoming involved with gangs. Sini testified before the United States Senate and House of Representatives regarding MS-13 and successfully lobbied the Department of Justice for additional resources to combat MS-13 in Suffolk County, including a $500,000 grant, which was awarded after President Donald J. Trump and Attorney General Jeff Sessions visited Suffolk County on two separate occasions. Sini also launched several new community intervention programs, including the innovative Preventing Incarceration Via Opportunities for Treatment (PIVOT) Program, an alternative to arrest program whereby the Suffolk County Police Department connects those suffering from drug addiction to treatment.
Sini also made homeland security a top priority, launching a number of initiatives including the SCPD Shield Program, a private public partnership to decrease Suffolk County’s vulnerability to terrorism, active shooter scenarios and street crime. Sini also rolled out new technology to enhance the Department’s capabilities in fighting crime, including a new, award-winning intelligence-led policing platform. In addition, Sini launched a number of initiatives to increase the efficiency of the patrol division, allowing officers to spend more time engaged in proactive police work and community policing, and significantly reformed the Police Department’s Internal Affairs Bureau, making it more accountable and responsive to community concerns.
District Attorney Sini serves as a representative on the White House’s Office of Drug Control Policy New York/New Jersey Regional HIDTA Team, where he assists in creating strategies between public health and public safety agencies to reduce opioid overdoses in the region. He is also the Executive Director of the Suffolk County Criminal Justice Coordinating Council, which consists of all the stakeholders in Suffolk County’s criminal justice system.
District Attorney Sini is a graduate of the FBI’s National Executive Institute, an elite training program for law enforcement’s national leaders, and a graduate of the Harvard Kennedy School of Government’s Executive Education program. He is also an adjunct professor at Touro Law Center where he teaches a course on contemporary issues in policing.
Prior to his appointment as Police Commissioner, Sini served as the Assistant Deputy County Executive for Public Safety in the administration of Suffolk County Executive Steven Bellone. In this role, he spearheaded numerous public safety initiatives, including an innovative drug treatment program targeting Suffolk County inmates and releasees, as well as an evidence-based gang prevention program targeting children as early as the third grade. Both programs received National Association of Counties (NACO) awards. He also led the effort, in collaboration with the Suffolk County Sheriff, to lift the unfunded state mandate to build a third jail in Suffolk County by developing a plan to further invest in alternative to arrest programs.
Sini started his career in law enforcement as an Assistant United States Attorney in the Criminal Division of the U.S. Attorney’s Office for the Southern District of New York where he served under U.S. Attorney Preet Bharara. Sini specialized in investigating and prosecuting violent crimes, including homicides, gang related activity and large scale narcotics cases. Prior to serving as an Assistant United States Attorney, Sini practiced law in the private sector and served as a law clerk for the Honorable William C. Conner, a federal district court judge in the Southern District of New York, and the Honorable Chester J. Straub, a federal circuit court judge in the Second Circuit.
Sini is a magna cum laude graduate of both Brooklyn Law School where he earned his Juris Doctor and American University in Washington, D.C. where he received his Bachelor of Arts degree in Political Science. He resides in Babylon Village with his wife, Amanda, and their three children.