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National Security Division

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Organizational Chart

Division Overview

The National Security Division is the first-of-its-kind in the nation for a United States Attorney’s Office and is responsible for combatting national security and cyber security threats facing our region and our nation.  Protecting national security is the highest priority of the Department of Justice and the United States Attorney’s Office. 

The National Security Division consists of the Terrorism and Export Crimes Section and the Cyber and Intellectual Property Crimes Section.  Due to the complexity of the cases handled by these Sections, the close coordination needed with other districts and DOJ by these sections, the increased reliance on classified information in their prosecutions, and the overriding goal of prevention shared by these sections, they joined together to form the National Security Division.  (note: items in yellow should be hyperlinked to the separate pages about each section)

Additional information about the Terrorism and Export Crimes Section and the Cyber and Intellectual Property Crimes Section, which are the two Sections within the National Security Division, may be found by clicking on the following tabs:

Division Leadership

Patricia Donahue

Patricia Donahue is the Chief of the National Security Division.   Ms. Donahue graduated from Stanford University and UCLA School of Law.  Following law school, she worked as a litigation associate in the Century City office of Jeffer Mangels Butler & Mitchel LLP.  She joined the United States Attorney’s Office in 1991 and has handled many violent crime cases, including co-trying United States v. Manning and United States v. Ross, which resulted in convictions and life sentences for a mail bomb murder.  Along with AUSA Nancy Spiegel, AUSA Donahue worked with federal, state and local law enforcement to establish the SAFE Team, the first multi-agency task force in this district focused on the investigation and prosecution of child exploitation cases.  She co-tried United States v. Pepe, which resulted in convictions for engaging in illicit sexual conduct with minors in Cambodia, and has also handled several other cases against U.S. citizens who traveled to Cambodia and committed sex crimes against children.  

Ms. Donahue has received the Attorney General’s Distinguished Service Award, the Attorney General’s Award for Excellence in Information Technology, and an EOUSA Director’s Award.  AUSA Donahue has served in many leadership positions within the Office, including as a Deputy Chief in the Major Crimes Section, Chief of the General Crimes Section, Chief of the Violent and Organized Crime Section, Senior Litigation Counsel, Human Trafficking Coordinator, and Giglio/Henthorn requesting official.  After September 11, 2001, she helped the Office establish its initial framework for handling national security matters.

Chris Grigg

Chris Grigg is the Chief of the Terrorism and Export Crimes Section (TEC), within the National Security Division.  Mr. Grigg graduated summa cum laude with a bachelor’s degree in history from UCLA and earned his law degree from the University of Southern California Gould School of Law in 1997.  While his classmates were preparing for the bar, Chris joined the military, where he was the distinguished honor graduate for his class at the United States Army’s Ranger School and served as a team leader in the Army’s 75th Ranger Regiment.  Chris then returned to civilian life and began his legal career in civil litigation before joining the Los Angeles County District Attorney’s Office as a Deputy District Attorney.  He joined our Office in November 2007 and joined the National Security Section (the predecessor to the TEC Section) in May 2008. 

Since joining the National Security team, Chris has worked on some of the Office’s biggest National Security cases, including the “MEK” case in Santa Ana, the investigation and resulting prosecutions arising out of the 2008 Mumbai terrorist attack, and the trial and appeal in the seminal International Emergency Economic Powers Act case United States v. Guo.  More recently, Chris was a member of the trial team that secured convictions and 25-year sentences for the lead defendants in United States v. Kabir, et al., in Riverside, the first material support trial in the District’s history. 

From 2010 to 2015, AUSA Grigg served as a co-coordinator of the Office’s Export and Anti-proliferation Global Law Enforcement (“EAGLE”) Task Force.  He was Deputy Chief in NSS between 2013 and 2015.  He received a Director of National Intelligence Award in 2009.  In 2015, Chris was awarded the Helene and Joseph Sherwood Prize by the Anti-Defamation League for his work on the Kabir case.

Tracy Wilkison

Tracy Wilkison is the Chief of the Cyber and intellectual Property Crimes Section.  Ms. Wilkison joined the United States Attorney’s Office in 1999.  She has been a part of the Cyber section since 2011, and served as its Deputy Chief from 2014 to August 2015. 

AUSA Wilkison has prosecuted numerous Cyber and IP cases, including “sextortion,” DDoS, hacking, trade secret, and trademark violations.  AUSA Wilkison also co-chairs the Automation Committee within the United States Attorney’s Office, which seeks to develop technology tools that can be used by AUSAs in all of their matters.  Prior to joining Cyber and Intellectual Property Crimes Section, AUSA Wilkison served as the Deputy Chief of General Crimes Section where she trained new AUSAs on prosecution skills and trail techniques.  AUSA Wilkison began her career in the United States Attorney’s Office prosecuting significant narcotics cases in the OCDETF section.  Prior to joining the United States Attorney’s Office, AUSA Wilkison clerked for the Honorable Franklin VanAntwerpen, United States District Court, Eastern District of Pennsylvania.  She graduated from Harvard Law School.

Division Contact Information

The United States Attorney's Office
Central District of California
Attn: National Security Division
312 North Spring Street, 15th floor

Los Angeles, California 90012

Individuals who wish to report activity that they believe may be related to terrorism should call the FBI at (310) 477-6565



Updated June 1, 2017

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