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About the District Attorney

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Jeff Rosen took office as District Attorney of Santa Clara County on January 3, 2011.

District Attorney Rosen is an experienced prosecutor and a recognized leader in criminal justice reform. His mission for the Santa Clara County District Attorney's Office is to aggressively pursue justice in a way that is fair and treats everyone with respect. His core values are service, hard work, transparency and integrity.

Mr. Rosen oversees the largest prosecutor's office north of Los Angeles, serving a population of about 1.8 million. The District Attorney's Office has 530 employees, including 182 deputy district attorneys. We prosecute approximately 40,000 cases each year. The Office also operates a cutting edge and scientifically rigorous Crime Laboratory, which has achieved the highest international certification.

Since taking office, Mr. Rosen created an innovative and nationally​-acclaimed Conviction Integrity Unit to investigate innocence claims and implement the most professional practices in criminal prosecution. In addition, Mr. Rosen established a Cold Case Unit to investigate unsolved murders and a misdemeanor diversion program for low-level offenders.

Mr. Rosen joined the Santa Clara County District Attorney's Office in 1995. During his career, he has successfully prosecuted some of the most difficult, complex and high profile criminal cases, including drug trafficking, burglary, robbery, rape, child molestation, gang violence and murder. Mr. Rosen has an outstanding conviction rate. In his last remaining case before taking Office, he obtained first degree murder convictions and life sentences against the defendants whose murder-for-hire scheme resulted in the senseless slaying of Los Gatos businessman Mark Achilli.

Before joining the District Attorney's Office, Mr. Rosen worked for prominent law firms in Los Angeles and Washington, D.C., where he practiced commercial litigation.

Since arriving in the Bay Area, Mr. Rosen has been active in the community. He served as president of a large synagogue, taught trial advocacy at Santa Clara University Law School and trained police officers in report-writing.

Mr. Rosen received his undergraduate degree from UCLA where he majored in Philosophy and graduated Summa Cum Laude and Phi Beta Kappa. He also won the prestigious Truman Scholarship and the Outstanding Senior Award. Mr. Rosen received his law degree from UC Berkeley School of Law, where he served on the Moot Court Board and taught English to immigrants.

Mr. Rosen's wife serves as a federal prosecutor. They have two daughters in middle school that ice skate, play soccer, do gymnastics and listen to music that their parents don't like. Mr. Rosen enjoys playing sports, reading, and cheering for the Green Bay Packers.

An admirer of President Harry Truman, Mr. Rosen believes, "The buck stops here."​​​​​​​