California Code, Penal Code - PEN § 13509.5

(a) There is within the commission a Peace Officer Standards Accountability Division, hereafter referred to in this chapter as the division.

(b) The primary responsibilities of the division shall be to review investigations conducted by law enforcement agencies or any other investigative authority and to conduct additional investigations, as necessary, into serious misconduct that may provide grounds for suspension or revocation of a peace officer's certification, present findings and recommendations to the board and commission, and bring proceedings seeking the suspension or revocation of certification of peace officers as directed by the board and commission pursuant to this chapter.

(c) The division shall be staffed with a sufficient number of experienced and able employees that are capable of handling the most complex and varied types of decertification investigations, prosecutions, and administrative proceedings against peace officers.

(d) The commission shall establish procedures for accepting complaints from members of the public regarding peace officers or law enforcement agencies that may be investigated by the division or referred to the peace officers' employing agency or the Department of Justice.