Senior Leadership

Kimberly Hopkins
Executive Assistant U.S. Attorney

Ms. Hopkins became the Executive Assistant U.S. Attorney for the Northern District of California on March 14, 2022. Prior to her appointment to this role, Ms. Hopkins served for nearly 10 years as a Criminal Division Assistant U.S. Attorney in the San Francisco district office, including as a member of the Asset Forfeiture section from October 2012 to January 2014, the Strike Force and Violent Crime section from January 2014 to September 2018, the Special Prosecutions and National Security section from September 2018 to July 2020, and the Corporate and Securities Fraud section from July 2020 to February 2022. Prior to joining the Northern District of California, Ms. Hopkins served for four years as an AUSA in the Violent Crime unit of the District of Arizona’s U.S. Attorney’s Office. Ms. Hopkins is a graduate of UCLA and Boston College Law School.

Jeff Mitchell
Chief, Criminal Division

Mr. Mitchell is a career prosecutor with more than two decades of experience. He joined the Department of Justice in 2004 through the Honors Program. Mr. Mitchell served as a trial attorney in the Antitrust Division in Washington, D.C., where he investigated matters involving the healthcare and consumer products industries. In 2006, he volunteered for a six-month detail to the U.S. Attorney’s Office in New Orleans to assist the district following Hurricane Katrina.

In 2007, Mr. Mitchell joined the U.S. Attorney’s Office in Los Angeles, where he served in the Domestic Security and Immigration Crimes Section, the Violent and Organized Crime Section, and the Major Frauds Section. During his time in Los Angeles, he was a Deputy Chief of the Violent and Organized Crime Section, Acting Deputy Chief of the Major Frauds Section, Henthorn Coordinator, Gang Coordinator, and Procurement Collusion Strike Force Coordinator. During the COVID-19 pandemic, Mr. Mitchell was also selected as a national coordinator of the Hoarding and Price Gouging Task Force, working with the Office of the Deputy Attorney General to implement and enforce the Defense Production Act in price-gouging investigations and prosecutions.

As a line assistant, Mr. Mitchell prosecuted 41 members of a violent street gang for RICO, murder, and drug trafficking offenses; the president of MGM Grand casino for anti-money-laundering violations; and Shohei Ohtani’s interpreter for bank fraud and tax violations arising from the theft of funds to pay off a sports bookie. In 2020, the Department of Homeland Security presented Mr. Mitchell with its Prosecutor of the Year Award for an organized crime investigation that resulted in convictions of a police officer and federal agents from the FBI and Homeland Security for bribery, bank fraud, obstruction of justice, and related offenses. In 2024, IRS-CI presented him with its Investigative Team of the Year Award for an investigation involving sports gambling, money laundering, and tax violations. Mr. Mitchell has also received two Victims’ Rights Awards for cases involving sex trafficking and labor trafficking.

Mr. Mitchell received his bachelor’s degree and law degree from UC Berkeley and obtained a master’s degree in economics from the University of Michigan, Ann Arbor.

Pamela Johann
Chief, Civil Division

Pam Johann joined this office in October 2016 and has been the Chief of the Civil Division since September 2024.  Prior to serving in this role, she was a Deputy Chief of the Civil Division for three years.  Pam started her legal career as a law clerk to the Honorable James B. Moran, Chief Judge of the United States District Court for the Northern District of Illinois.  She then worked as a general civil litigator in private practice, and was a partner at Howard, Rice, Nemerovski, Canady, Falk & Rabkin.  Pam is a graduate of Williams College and Harvard Law School.