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Senior Leadership

Alex G Tse
First Assistant U.S. Attorney

Mr. Tse serves as the First Assistant U.S. Attorney. Mr. Tse is now on his third rotation in the U.S. Attorney’s Office. He began as a law clerk in the Civil Division. Following law school, Mr. Tse worked as a litigation associate at two large national law firms based in San Francisco. In 1994, he returned to the U.S. Attorney’s Office as an AUSA in the Civil Division where he handled both affirmative and defensive cases. He was promoted to Deputy Civil Division Chief in 2001, serving as a supervisor and handling affirmative cases under the False Claims Act. Mr. Tse left the U.S. Attorney’s Office in 2006 to work at the San Francisco City Attorney’s Office, supervising the team responsible for code enforcement and civil gang injunctions. In 2012, Mr. Tse returned to the U.S. Attorney’s Office as Chief of the Civil Division. Mr. Tse graduated from the University of California, Berkeley, and received his law degree from University of California, Hastings College of the Law.

 

Joshua Eaton
Executive Assistant U.S. Attorney

Mr. Eaton serves as the Executive Assistant U.S. Attorney.  Mr. Eaton has held this role since he joined the office in 2007. Prior to joining the U.S. Attorney’s Office, Mr. Eaton served as an Assistant General Counsel and Deputy General Counsel with the Executive Office for U.S. Attorneys, General Counsel’s Office from 2003 to 2007. Mr. Eaton spent his last year with the Executive Office as the Director’s Hearing Officer, presiding over Assistant U.S. Attorney and senior Executive Office employee grievance and disciplinary actions. Prior to his tenure with the Executive Office, Mr. Eaton served in the U.S. Army Judge Advocate General’s Corps. While on active duty in the Army, Mr. Eaton served as a prosecutor, labor and employment law attorney, and the operational law advisor to the Commanding General of the 25th Infantry Division (Light) in Hawaii. In addition, while on active duty, Mr. Eaton served as the Chief of Military Justice and primary legal advisor to the Ground Forces Commander for the U.S. Army-led Northern Division of the multinational stabilization force deployed to Bosnia and Herzegovina. Mr. Eaton graduated from California Polytechnic State University, San Luis Obispo, and received his law degree from the University of San Francisco.
 

 

David R. Callaway
Chief, Criminal Division

Mr. Callaway is the Chief of the Criminal Division. He joined the U.S. Attorney’s Office in 1998. Prior to his current position, Mr. Callaway spent two years a prosecutor in the Computer Hacking and Intellectual Property unit in San Jose. Mr. Callaway’s previous supervisory experience includes serving as Chief of the Economic Crimes and Securities Fraud section, in San Francisco, from 2010 to 2012; Chief of the San Jose Branch office from 2009 to 2010; and Deputy Chief of the San Jose Branch office from 2006 to 2009. Mr. Callaway has also served as Health Care Fraud coordinator, Bankruptcy Fraud coordinator, and Professional Responsibility Officer. He received the Executive Office for U.S. Attorney’s Director’s Award for Superior Performance as an AUSA in 2003. Before joining the USAO, Mr. Callaway was a Deputy District Attorney in Santa Clara County from 1995 to 1998, and for the five years before that was an associate with Topel & Goodman, a criminal defense firm in San Francisco. Before joining Topel & Goodman, Mr. Callaway served for four years in the Army: three years with the Judge Advocate General’s Corps, including stints in Panama, and Korea, and one year in the Chief Counsel’s Office of the U.S. Army Corps of Engineers, in Washington, D.C. Mr. Callaway is a graduate of UC Berkeley School of Law and Santa Clara University.

 

Sara Winslow
Chief, Civil Division

Ms. Winslow serves as the Chief of the Civil Division. She joined the United States Attorney’s Office as an Assistant United States Attorney in 2001, and served as a Deputy Chief of the Civil Division from 2003 to 2016. As Deputy Chief, Ms. Winslow supervised the Office’s affirmative civil enforcement cases under the False Claims Act and other statutes. Prior to joining the United States Attorney’s Office, she handled False Claims Act cases as a Trial Attorney at the Department of Justice’s Civil Division from 1996 to 2001. Ms. Winslow was a judicial clerk for Judge John M. Steadman of the District of Columbia Court of Appeals from 1995 to 1996. She graduated from Syracuse University and received her law degree from the Georgetown University Law Center.

 

Barbara Valliere
Chief, Appellate Division

Ms. Valliere serves as the Chief of the Appellate Division. Ms. Valliere joined the United States Attorney’s Office in November of 2004, and has been the Chief of the Appellate Division since 2005. From 2010 to 2012, she was the Chairperson of the Appellate Chiefs’ Working Group of the Attorney General’s Advisory Committee, and was a member of that group from 2008 through 2012. Ms. Valliere was also an Appellate Lawyer Representative to the Court of Appeals for the Ninth Circuit. Between 2002 and 2004, she was the Deputy Chief of the Appellate Division of the United States Attorney’s Office in the District of Columbia. Ms. Valliere joined the United States Attorney’s Office in the District of Columbia in 1989 and rotated through the Superior Court Division, Special Proceedings Division, Public Corruption Section of the Criminal Division, and the Civil Division before returning to the Appellate Division in 1995. Before becoming an Assistant United States Attorney, she spent two years in private practice at the law firm of Palmer & Dodge in Boston, Massachusetts. Ms. Valliere graduated from Brown University and received her law degree from Suffolk University Law School in Boston.

 

Thomas Moore
Chief, Tax Division

Mr. Moore serves as the Chief of the Tax Division. Mr. Moore joined the United States Attorney’s Office in 1992, serving 15 years as an Assistant United States Attorney in the Tax Division before being promoted to Chief in 2007. Before joining the United States Attorney’s Office, Mr. Moore served four years as a Trial Attorney with United States Department of Justice, Tax Division, Civil Trial Section, Western Region from 1988 to 1992. He is a graduate of Auburn University and Cumberland School of Law, Samford University.

 

J. Douglas Wilson
Counsel to the U.S. Attorney

Mr. Wilson serves as  the Counsel to the U.S. Attorney.  Mr. Wilson joined the United States Attorney’s Office in 1999. Prior to his current position, Mr. Wilson served as Chief of the Criminal Division from 2013 to 2014, Deputy Chief of the Criminal Division from 2010 to 2013, Chief of the National Security Unit from 2008 to 2009, and Appellate Chief from 1999 to 2002. In 2009, Mr. Wilson was detailed from the Office to be the Executive Director of the President’s Task Force on Interrogation and Transfer Policy in Washington D.C. From 2005 to 2007, Mr. Wilson was detailed to the Enron Task Force. From 2002 to 2004, Mr. Wilson was Special Assistant to the Counsel for Intelligence Policy at the Office of Intelligence Policy and Review in the Department of Justice. Prior to joining the United States Attorney’s Office Mr. Wilson was an attorney in the Appellate Section of the Department of Justice’s Criminal Division in Washington, D.C. 1988 to 1999. Mr. Wilson has served as a Professional Responsibility Officer for the Department since 1994. From 1985 through 1986, Mr. Wilson served a judicial clerkship with the Honorable Dolores K. Sloviter of the United States Court of Appeals for the Third Circuit. He is a graduate of Swarthmore College and Washington University School of Law in St. Louis.

 

Philip Guentert
Counsel to the U.S. Attorney

Mr. Guentert serves as the Counsel to the U.S. Attorney.  He joined the U.S. Attorney’s Office in the Northern District of California in 2012.  From 2015 to 2016 he served as the Deputy Chief of the Criminal Division. From 2007 to 2012 Mr. Guentert was detailed by the Department of Justice to the U.S. Embassy in Bangkok, Thailand, where he served first as Resident Legal Advisor and later as DOJ Attaché as well as the Intellectual Property Law Enforcement Coordinator for Asia.  Prior to his Asia detail, Mr. Guentert served as the Chief of the Public Corruption Section, and the Ethics and Professional Responsibility Advisor for the criminal division, at the U.S. Attorney’s Office in the Northern District of Illinois. He joined the Department of Justice as an Assistant United States Attorney in that district in 1990, and received Director’s Awards in 2007 and 2008 for achievements in criminal prosecution. While in the Northern District of Illinois, Mr. Guentert was a Lecturer at the University of Chicago Law School and an Adjunct Professor at the Northwestern University School of Law. Before joining the Department of Justice, he was an associate at the law firm of Heller Ehrman White & McAuliffe in San Francisco and a judicial clerk for the Hon. Eugene F. Lynch of the United States District Court, Northern District of California. Mr. Guentert graduated from Yale University and received a master’s degree and law degree from Harvard University.
 

Updated July 12, 2016