On request of any member of the California Highway Patrol, any regularly employed and salaried police officer or deputy sheriff, or any reserve police officer or reserve deputy sheriff listed in Section 830.6 of the Penal Code, or any employee or officer of the department specified in Section 1655, who is conducting an investigation of a public offense, the lessor of a vehicle shall furnish the name and address of the lessee of a vehicle if that information does not appear on the registration card.
Source:
Section 4453.6, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=VEH§ionNum=4453.6..