After a 2 year long process, AB 1185, which allows either a county board of supervisors (by vote) or county residents (by referendum) to set up a sheriff oversight board with subpoena power, is a law.
On the last day of the 2020 legislative session, AB 1185 author Kevin McCarty filed a letter to the journal specifying that the intent of the legislation was to grant supervisory authority to the County Board of Supervisors over all county officers, including the Sheriff.
McCarty-AB-1185-Letter-to-the-JournalJanuary 6 Oakland Privacy letter to the Alameda County Board of Supervisors
Jan-6-Letter-to-Alco-BOS