San Francisco City Attorney Investigates Leaked Memo, Raising Concerns

The unprecedented probe into a supervisor's office over a confidential document leak has drawn criticism from veteran journalists.

Apr. 9, 2026 at 10:33pm by Ben Kaplan

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A dynamic, abstract painting featuring overlapping geometric shapes and fractured lines in shades of blue, teal, and violet, conceptually representing the tension between government secrecy and the public's right to know.The City Attorney's unprecedented investigation into a leaked confidential memo raises concerns about the erosion of press freedoms and government transparency.San Francisco Today

The San Francisco City Attorney's Office has launched an investigation into the leak of a confidential memo regarding the legality of Mayor Daniel Lurie's proposal to detain intoxicated individuals without formal charges. The memo, which undermined the mayor's plan, was obtained by the local news outlet Mission Local. Supervisor Matt Dorsey, who supported the mayor's proposal, has been vocal in calling for the investigation, which is now focusing on the office of Supervisor Jackie Fielder. Critics argue the probe is an unprecedented and alarming attack on press freedoms and the principle of confidential sources.

Why it matters

The City Attorney's investigation into the leaked memo is seen as a concerning precedent that could have a chilling effect on the ability of journalists to report on sensitive government information. Leaks of confidential documents are a common practice that helps hold public officials accountable, and the aggressive pursuit of the source in this case is viewed by many as a political vendetta against a supervisor who opposed the mayor's proposal.

The details

The confidential memo in question assessed the legal issues with Mayor Lurie's plan to force intoxicated individuals into a holding center without formal charges. The memo, which was accessed by at least 50 people, was obtained by the news outlet Mission Local and published, undermining the mayor's proposal. Supervisor Dorsey, who supported the mayor's plan, has joined City Attorney David Chiu in calling for an investigation into the leak, with Chiu warning that the source could face 'significant penalties.' The investigation is now focusing on the office of Supervisor Jackie Fielder, who has denied leaking the document.

  • The confidential memo was leaked to Mission Local in early April 2026.
  • The City Attorney's investigation into the leak was launched shortly after the publication of the Mission Local article.

The players

David Chiu

The San Francisco City Attorney who has launched an unprecedented investigation into the leak of a confidential memo.

Jackie Fielder

A San Francisco Supervisor whose office is being investigated by the City Attorney over the leaked memo, despite her office denying any involvement.

Matt Dorsey

A San Francisco Supervisor who has been a vocal supporter of the City Attorney's investigation, frequently clashing with Supervisor Fielder politically.

Daniel Lurie

The Mayor of San Francisco who proposed the plan to detain intoxicated individuals without formal charges, a plan that was undermined by the leaked confidential memo.

Mission Local

The local news outlet that obtained and published the confidential memo, which exposed the legal issues with the mayor's proposal.

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What they’re saying

“Attorney-client privilege is sacrosanct. If a single supervisor or staffer leaked it, it is serious and it has to be taken seriously.”

— Matt Dorsey, San Francisco Supervisor

“In all my time serving the city, I have never seen the City Attorney's Office conduct an investigation of a leaked document. It's unprecedented and alarming.”

— David Campos, Former San Francisco Supervisor

What’s next

The City Attorney's investigation is ongoing, and it remains to be seen whether any disciplinary action will be taken against the source of the leaked memo.

The takeaway

This case highlights the tension between government transparency and the protection of confidential information, as well as the potential for political retaliation against whistleblowers and journalists who expose controversial government actions. The aggressive pursuit of the leak source by the City Attorney's Office is seen by many as a concerning assault on press freedoms and the public's right to know.