Assistant U.S. Attorney Joins Gibson Dunn in New York

September 24, 2015

​Gibson, Dunn & Crutcher LLP is pleased to announce that Jason P.W. Halperin has joined the firm’s New York office from the U.S. Attorney’s Office as of counsel.

Halperin served as an Assistant United States Attorney in the U.S. Attorney’s Office for the Southern District of New York from 2004 to 2015.  He conducted 13 federal jury trials, and never lost a trial.  His trials included a high-profile terrorism trial resulting in the conviction of four men plotting to blow up synagogues in New York, and a corruption trial resulting in the conviction of a Yonkers City Councilwoman and her political patron.  Halperin also successfully prosecuted three New York State Senators, political aides, and developers for white-collar corruption crimes and tax fraud. 

He has prosecuted a vast array of white-collar fraud cases, including public corruption, bank fraud, wire fraud, mortgage fraud, money laundering, tax evasion, obstruction of justice and false statement cases.  Moreover, he led teams of prosecutors and agents in high-profile, complex, white-collar Grand Jury investigations.

Halperin also prosecuted international and domestic terrorism cases, as well as national security cases involving unlawful exports, international money laundering, and overseas money transmitting schemes.  In 2013, he won the Office of the Director of National Intelligence (ODNI)’s Counterintelligence Award for Excellence, the ODNI’s highest nationwide award, for an international counterproliferation investigation.  In addition, he has extensive experience practicing before the United States Court of Appeals for the Second Circuit, having briefed and argued numerous cases on appeal.

Before joining the U.S. Attorney’s Office, Halperin served as an associate with Wilmer, Cutler & Pickering in Washington, D.C. and Schulte Roth & Zabel in New York.  He served as a law clerk to Judge Ricardo Urbina of the United States District Court for the District of Columbia from 2000 to 2002.  Halperin received his law degree from the New York University School of Law in 1999 and his Bachelor of Arts in political science from Yale University in 1992.  After college, Halperin worked for New York Governor Mario M. Cuomo for four years, serving for two years as the former Governor’s principal staffer, advising and working with him daily, and traveling with him across the country.