San Francisco District Attorney: Office and Functions
The San Francisco District Attorney holds the prosecutorial authority for the City and County of San Francisco, representing the People of California in criminal proceedings at the local level. This page covers the office's legal mandate, how charging and case decisions are made, the range of matters it handles, and the limits of its jurisdiction. Understanding how the DA's office operates is essential for anyone navigating the local criminal justice system, from arrest through sentencing.
Definition and scope
The District Attorney of San Francisco is a constitutional officer established under Article V, Section 11 of the California Constitution, which mandates a District Attorney in each county. Because San Francisco is a consolidated city-county, the DA serves a jurisdiction that functions simultaneously as a city and as a California county — meaning the office exercises county-level prosecutorial powers within a 47-square-mile urban geography.
The DA's core mandate is to prosecute violations of California state law committed within San Francisco County. The office evaluates arrests forwarded by law enforcement agencies — primarily the San Francisco Police Department and the San Francisco Sheriff's Department — and decides whether sufficient evidence exists to charge a suspect. The DA also handles consumer protection enforcement, certain civil actions under California statutes, and victim services coordination.
Scope and geographic coverage: The office's prosecutorial authority applies to offenses occurring within San Francisco County limits. Cases involving crimes committed on federal property within San Francisco — such as federal buildings or military installations — fall under the jurisdiction of the United States Attorney for the Northern District of California, not the DA. Crimes that cross county lines may be handled jointly with neighboring county DA offices. The San Francisco DA does not prosecute juvenile cases in superior court independently; those matters go through the juvenile justice division of the San Francisco Superior Court. Municipal code infractions handled administratively by city agencies are also outside the DA's criminal docket.
The DA is elected by San Francisco voters to a 4-year term (California Government Code §24000), making the office directly accountable to the electorate rather than appointed by the Mayor or the Board of Supervisors.
How it works
Once a law enforcement agency makes an arrest and forwards the case file, the DA's office initiates a formal charging review. A deputy district attorney evaluates the evidence against California's standard of proof for filing charges — whether there is a reasonable likelihood of conviction at trial. This review typically occurs within 48 hours of an in-custody arrest under California Penal Code §825, which sets the deadline for arraignment.
The charging process follows a structured sequence:
- Intake review — Deputy DAs assess police reports, physical evidence, and witness statements forwarded by arresting agencies.
- Filing decision — Prosecutors decide to file charges, decline to file (a "reject"), or request additional investigation.
- Arraignment — The defendant appears in San Francisco Superior Court and enters a plea.
- Preliminary hearing or grand jury — For felonies, the prosecution must establish probable cause before a judge or present the case to a grand jury.
- Pre-trial motions — Both sides litigate admissibility of evidence, constitutional issues, and discovery.
- Trial or disposition — Cases resolve through jury trial, bench trial, or a negotiated plea agreement.
- Sentencing — If a conviction is obtained, the court imposes sentence, with the DA's office often making sentencing recommendations within California's statutory ranges.
The office maintains specialized units covering homicide, sexual assault, domestic violence, economic crimes, and environmental enforcement. Each unit applies California Penal Code and relevant special statutes rather than San Francisco municipal ordinances, which are enforced separately through the San Francisco City Attorney.
Common scenarios
The DA's office processes a high volume and variety of matters. Typical case categories include:
- Violent felonies — Homicide, assault with a deadly weapon, and robbery prosecuted under California Penal Code provisions carrying state prison sentences.
- Property crimes — Burglary, auto theft, and theft offenses stratified by California's Proposition 47 (2014) threshold of $950, which reclassified thefts below that amount from felony to misdemeanor under California Penal Code §490.2.
- Drug offenses — Prosecution of sales and distribution; simple possession cases are subject to diversion programs under California Penal Code §1000.
- Domestic violence — Handled by a dedicated unit; the DA retains the discretion to proceed with prosecution even if a victim declines to cooperate, a distinction from civil restraining order proceedings.
- Consumer and environmental fraud — California Business and Professions Code §17200 authorizes the DA to bring civil enforcement actions against unfair business practices, independent of criminal prosecution.
- Hate crimes — Prosecuted with sentence enhancements under California Penal Code §422.55.
The San Francisco Public Defender represents defendants who cannot afford private counsel, creating the primary institutional counterpart to the DA in the courtroom.
Decision boundaries
A critical structural distinction separates the DA's office from other government entities that touch the criminal justice system. The DA vs. City Attorney distinction is the most frequently misunderstood:
| Function | District Attorney | City Attorney |
|---|---|---|
| Authority basis | California Penal Code; state law | San Francisco Municipal Code; civil law |
| Proceedings | Criminal prosecutions | Civil enforcement, city legal representation |
| Forum | Superior Court (criminal division) | Superior Court (civil division), administrative tribunals |
| Appointment | Elected countywide | Elected citywide |
The DA operates independently of the Mayor's office on all prosecutorial decisions. California Government Code §26500 explicitly vests sole charging discretion in the District Attorney, and neither the Mayor nor the Board of Supervisors may direct, compel, or reverse a prosecutorial decision. The San Francisco Ethics Commission has oversight of campaign finance and conduct rules applicable to the DA as an elected official, but not over case-by-case prosecutorial choices.
The DA also exercises discretion regarding diversion — alternatives to conventional prosecution that route eligible defendants into treatment, restorative justice, or community supervision programs. Participation in pre-trial diversion is authorized under California Penal Code §1001.95 (enacted 2020), which gives judges the power to offer diversion over a prosecutor's objection in certain misdemeanor cases, creating a documented tension point between judicial and prosecutorial authority.
Oversight of the DA's office within the city's broader accountability structure is addressed on the San Francisco government reference index, which maps all elected and appointed offices and their relationships.
References
- California Constitution, Article V, Section 11 — Legislative Counsel of California
- California Government Code §26500 — District Attorney duties
- California Government Code §24000 — County officers, elected
- California Penal Code §825 — Arraignment deadline
- California Penal Code §490.2 — Proposition 47 theft threshold
- California Penal Code §1000 — Diversion for drug offenses
- California Penal Code §422.55 — Hate crime definition
- California Penal Code §1001.95 — Misdemeanor diversion
- San Francisco District Attorney — Official Office
- San Francisco Superior Court