(a)
The board is authorized to establish the position of chief of police. The chief of police shall be a duly sworn peace officer who shall be appointed by the board and who shall meet the current requirements of the Commission on Peace Officer Standards and Training pursuant to Title 4 (commencing with Section 13500) of Part 4 of the Penal Code.(b)
If the board determines that more than one peace officer is needed, the board shall contract with law enforcement agencies located within the County of Marin or the County of Sonoma for the additional law enforcement services of one or more duly sworn peace officers who shall meet the current requirements of the Commission on Peace Officer Standards and Training pursuant to Title 4 (commencing with Section 13500) of Part 4 of the Penal Code.
Source:
Section 105033, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PUC§ionNum=105033..