Justin D. Weitz

At DOJ, Justin served as the principal assistant chief of the Fraud Section’s Market Integrity and Major Frauds Unit, where he led 45 prosecutors who handled complex white-collar criminal investigations and prosecutions, including securities and commodities fraud, financial fraud, market manipulation, procurement fraud and government contracts, cryptocurrency, and public corruption matters.

At DOJ, Justin led and supervised multiple corporate enforcement resolutions and individual cases, tried numerous cases to verdict, and handled appeals. He also conducted and supervised dozens of investigations into publicly traded companies, hedge funds, and financial institutions, including investigations into accounting improprieties, insider trading, market manipulation, and disclosure issues. As part of his practice, Justin frequently consulted with foreign authorities, including the UK Serious Fraud Office (SFO) and Financial Conduct Authority. Justin developed and led the Fraud Section’s COVID-19 Securities Fraud Initiative, which focused on healthcare and securities fraud in the medical technology and life sciences industries and resulted in charges against multiple corporate executives.

Justin is a co-leader of the firm’s aerospace and defense industry team and assists defense and aerospace clients with investigations and government enforcement matters. At DOJ, Justin led the Fraud Section’s government procurement fraud and bribery practice for several years and focused on enforcement involving government contractors in the defense, energy, and homeland security space. Justin is deeply familiar with the issues facing government contractors, including challenges posed by the False Claims Act and the Federal Acquisition Regulations (FAR). Justin also co-leads the firm’s Inspectors General Working Group, focusing on issues related to inspector general audits and investigations.

Justin holds an active security clearance and works with clients in national security matters.

Justin regularly speaks in the United States at forums on trends and developments in the enforcement space. In addition, he teaches the course Securities and Financial Fraud Investigations at Georgetown University Law Center and has guest lectured at various academic institutions, including the University of Pennsylvania Carey Law School and Columbia University School of Law. At DOJ, Justin served as an instructor for the department’s National Advocacy Center and the Council of Inspectors General for Integrity and Efficiency.

Prior to serving DOJ’s Fraud Section, Justin spent four years as a trial attorney in DOJ’s Public Integrity Section, where he led bribery, election crimes, and other public corruption investigations, with a focus on congressional matters, Speech or Debate Clause issues, and the Federal Election Campaign Act (FECA). 

• Represent corporate victims in criminal counterfeiting and trade secret theft matters
• Conduct internal investigations in national security space on behalf of large technology company
• Conduct internal investigation on behalf of pharmaceutical company related to Foreign Corrupt Practices Act (FCPA) and compliance issues in Middle East
• Represent charged individuals in procurement fraud and healthcare fraud matters in District of Columbia
• Represent multinational corporation in DOJ criminal and civil investigations related to procurement of defense products 
• Represent energy services corporation in DOJ FCPA investigation related to contracts in Latin America 
• Conduct internal investigations on behalf of large energy company
• Successfully represent cryptocurrency platform in civil litigation
• Represent subject of DOJ antitrust investigation
• Represent multiple individuals in DOJ investigation related to auto emissions
• At DOJ: Prosecuted the chief financial officer of a publicly traded company for securities fraud in relation to accounting fraud scheme
• At DOJ: Prosecuted multiple corporate executives for healthcare and securities fraud in relation to schemes to defraud investors surrounding the COVID-19 pandemic
• At DOJ: Prosecuted a multinational corporation and multiple individuals for fraud and corruption in relation to US Defense Department contracting in South Korea