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San Mateo County supervisors vote unanimously to remove Sheriff Christina Corpus
Summary
After reviewing Judge James Emerson's advisory opinion and the administrative record, the San Mateo County Board of Supervisors voted unanimously on Oct. 14, 2025 to remove Sheriff Christina Corpus from office effective immediately; the decision implements the hearing officer's rationale and is likely to be challenged in court.
The San Mateo County Board of Supervisors voted unanimously on Oct. 14, 2025 to remove Sheriff Christina Corpus from office for cause under section 412.5 of the county charter.
County attorney Mister Niblin told the board that Judge James Emerson's advisory opinion and the administrative record establish four independent causes for removal and that the resolution before the board adopts the hearing officer's rationale. "The resolution that's sitting before the the board at this time, today reflects that the board adopts Judge Emerson's opinion that there are 4 independent causes to remove the sheriff," Niblin said as he summarized the record and the board packet.
Supervisors debated procedural and legal questions before a roll‑call vote. Supervisor Spear reviewed the record in detail, noting the hearing included "36 witnesses who testified under oath, a 174 exhibits, and 55 hours of testimony" and said she would vote to terminate the sheriff. The motion to adopt the resolution and to approve the county counsel's final decision after the removal hearing passed on a unanimous roll call; the clerk recorded five affirmative votes.
The county attorney said the board's vote makes removal effective immediately and that the sheriff's counsel indicated an intent to challenge the decision in court. "If adopted, the resolution directs all other actions necessary to remove the sheriff from office and to make [the] decision final and effective immediately," Niblin said. County staff will serve the written final decision by mail; any appellate or other legal challenges by Sheriff Corpus will be pursued by her personally, not in the capacity of sheriff, according to the county attorney.
The action ended an extended process that began with a county investigation and a notice of intent to remove, included a pre‑removal conference, and a 10‑day appeal hearing in August 2025. Judge Emerson's advisory opinion, received by the county on Oct. 6, found by a preponderance of the evidence that the county established four separate causes: a conflict of interest related to an outside relationship with an employee identified in the record as Victor INJ; retaliation against Deputy Sheriffs Association President Carlos Tapia (including findings on an arrest); an unlawful arrest without probable cause; and retaliation alleged against Captain Brian Phillip.
