CA Gov't Code Section 18931

(a)

The board shall establish minimum qualifications for determining the fitness and qualifications of employees for each class of position. The department may require applicants for examination or appointment to provide documentation as it deems necessary to establish the applicants’ qualifications.

(b)

Whenever the law requires that an applicant for a position as a peace officer be screened to ensure that the applicant is free from emotional and mental impairment, the department or the designated appointing authority shall undertake such screening subject to the applicant’s right to appeal to the board.