The Department of Corrections and the Department of the Youth Authority shall complete a background investigation, using as guidelines standards defined by the Commission on Peace Officer Standards and Training, of any applicant for employment as a peace officer before the applicant may be employed or begin training as a peace officer. In order to reduce potential duplication of effort by individual institutions, investigations shall be accomplished by each department on a centralized or regional basis to the extent administratively feasible.
Source:
Section 1029.1, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=GOV§ionNum=1029.1..