The 5-0 vote marks the first time the board has used its authority under Measure A, a 2025 charter amendment approved by 84% of voters in a special election in response to alleged misconduct by Corpus. The measure allows the board to remove an elected sheriff for cause with a supermajority vote through Dec. 31, 2028.

The San Mateo County Board of Supervisors voted Tuesday to remove Sheriff Christina Corpus from office, marking the first use of their newly granted authority under a voter-approved charter amendment.

A Bay Area county may be making history on Tuesday when its supervisors decide if they’ll remove an elected sheriff for alleged misconduct. San Mateo County Sheriff Christina Corpus could be stripped of her position by the county’s Board of Supervisors after an investigation into her office leadership last year “outlin[ed] allegations of corruption,