Public Utilities Code § 8226

The Governor of the state may, upon the application of any railroad company, appoint and commission during his or her pleasure one or more persons designated by the company, to serve at the expense of the company, as police officers, who shall have the powers and authority of peace officers listed in Section 830.33 of the Penal Code, after being duly sworn. The company designating these persons shall be responsible civilly for any abuse of their authority.