Cal. Fish & Game Code § 393
(a) A regularly employed law enforcement officer of an Oregon, Nevada, or Arizona state law enforcement agency, including, but not limited to, the Oregon State Police, the Nevada Department of Wildlife, or the Arizona Game and Fish Department, is a peace officer in this state, if all of the following conditions are met:
(2) The officer is providing, or attempting to provide, law enforcement services pursuant to either of the following: