Cal. Lab. Code § 4458.2
If an active peace officer of any department as described in Section 3362 suffers injury or death while in the performance of his or her duties as a peace officer, or if a person engaged in the performance of active law enforcement service as described in Section 3366 suffers injury or death while in the performance of that active law enforcement service, or if a person registered as a reserve peace officer of any regularly organized police or sheriff's department as described in Section 3362.5 suffers injury or death while in the performance of his or her duties as a peace officer, then, irrespective of his or her remuneration from this or other employment or from both, his or her average weekly earnings for the purposes of determining temporary disability indemnity and permanent disability indemnity shall be taken at the maximum fixed for each, respectively, in Section 4453. Four times his or her average annual earnings in disability cases and in death cases shall be taken at the maximum limits provided in Sections 4452 and 4702 respectively.
Ca. Lab. Code § 4458.2