Jacquelyn Kasulis is a partner in the Government, Regulatory & Internal Investigations Practice Group in the New York office of Kirkland & Ellis LLP. Jackie is a former federal prosecutor and experienced courtroom advocate, and most recently served as the Acting U.S. Attorney for the Eastern District of New York (EDNY). At Kirkland, she focuses her practice on representing and counseling companies, executives and boards of directors in investigations and litigation.

As an Assistant U.S. Attorney in the EDNY, Jackie investigated and prosecuted a wide variety of criminal matters involving securities fraud, market manipulation, national security, digital currency and cybercrime, investment adviser fraud, healthcare fraud, money laundering and violations of the Foreign Corrupt Practices Act and the Bank Secrecy Act. She spent close to 14 years at the U.S. Attorney’s Office and served in various senior leadership positions, including Chief Assistant U.S. Attorney, Chief of the Criminal Division, and Chief of the Business & Securities Fraud Section. As Acting U.S. Attorney, Jackie oversaw a team of 480 employees, including 175 Assistant U.S. Attorneys, and was responsible for all criminal, civil and appellate matters for the district.

During her career, Jackie led such high-profile matters as the prosecution and trial conviction of hedge fund manager and pharmaceutical executive Martin Shkreli, also known as “Pharma Bro,” and the investigation and prosecution of major financial institutions for various financial crimes. She also supervised a number of corporate resolutions and countless trials. She frequently coordinated with the U.S. Department of Justice’s Fraud Section and Money Laundering and Asset Recovery Sections, the FBI and the IRS, and with domestic and foreign regulatory and enforcement authorities, including the SEC, the CFTC, the Federal Reserve Bank and the U.K. Serious Fraud Office.

Jackie is a regular speaker on legal and leadership topics and has received several accolades, including the Eastern District Association’s Charles E. Rose Award, the Federal Law Enforcement Foundation’s Prosecutor of the Year Award, and the Assistant Attorney General’s Award.

She was an adjunct professor at New York University School of Law in the Federal Prosecution Externship Clinic and is currently a member of the Board of Advisors of the Program on Corporate Compliance & Enforcement at the law school.



Eastern District Association’s Charles E. Rose Award (2019) (awarded annually to an outstanding AUSA)

Excellence in Criminal Litigation Award (2009)

Federal Prosecutor of the Year Award, Federal Law Enforcement Foundation (2015 and 2019)

Federal Executive Board Award (2015)

IRS Deputy Commissioner’s Award (2019)

Assistant Attorney General’s Award (2020)

Memberships & Affiliations

Member, Board of Advisors of the Program on Corporate Compliance & Enforcement, NYU School of Law (2017–Present)

Member, White Collar Committee of the New York City Bar Association (2017–2019)


Admissions & Qualifications

  • New York


  • Columbia Law SchoolJ.D.

    Harlan Fiske Stone Scholar, 2001–2002

    James Kent Scholar, 2002–2003

    Jerome Michael Mock Trial Program, 2002–2003, Finalist

    Columbia Journal of Transnational Law, 2001–2002

  • Davidson CollegeB.A., Historycum laude

Other Distinctions

Adjunct Professor at NYU School of Law, Federal Prosecution Externship Clinic (2018–2021)