Jonathan Leiken, a former federal prosecutor in the Southern District of New York, represents public and private companies and individuals in significant government investigations, complex civil lawsuits, and at trial. He conducts internal corporate investigations for boards of directors and senior management and defends clients before a wide range of government agencies, including the Department of Justice, the Securities & Exchange Commission, and various federal, state, and local regulators.Jonathan has represented large and small organizations (including financial institutions and manufacturers), and their executives and employees, in government inquiries and civil litigation involving allegations of fraud (securities, accounting, financial misdealing, valuation, mortgages, disclosure, lending, and self-dealing), insider trading, and violations of the Foreign Corrupt Practices Act. Jonathan has handled several international inquiries for U.S. public companies, and he regularly counsels clients on the development and maintenance of effective worldwide compliance programs.As a federal prosecutor, Jonathan tried numerous criminal matters to verdict and personally argued cases before the U.S. Court of Appeals. After returning to private practice, Jonathan was appointed by the mayor of Cleveland to conduct an independent investigation into allegations of corruption in the Cleveland Police Department.Jonathan is an officer and sits on the Executive Committee of the Cleveland Metropolitan Bar Association. He is an adjunct professor of law at Case Western Reserve University Law School, where he teaches a course on white-collar crime.