Cal. Gov. Code § 3060
An accusation in writing against any officer of a district, county, or city, including any member of the governing board or personnel commission of a school district or any humane officer, for willful or corrupt misconduct in office, may be presented by the grand jury of the county for, or in, which the officer accused is elected or appointed. The grand jury presenting the accusation may also be the additional grand jury impaneled pursuant to Section 904.4, 904.6, or 904.8 of the Penal Code. An accusation may not be presented without the concurrence of at least 12 grand jurors, or at least 8 grand jurors in a county in which the required number of members of the grand jury is 11, or at least 14 grand jurors in a county in which the required number of members of the grand jury is 23.
Ca. Gov. Code § 3060