CA Bus & Prof Code Section 21665

(a)

Swap meet operators shall retain a copy of the reports collected by them for six months and shall make the copies available for inspection, upon request, by a peace officer as defined in Section 830.1 or subdivision (a) of Section 830.3 of the Penal Code, or a peace officer of the Department of the California Highway Patrol as defined in subdivision (a) of Section 830.2 of the Penal Code, when the swap meet occurs on state property, or properly identified representatives of the State Board of Equalization or Department of Justice.

(b)

Vendors shall have available for inspection during the swap meet a completed copy of the report form which was submitted to the swap meet operator describing the goods offered or displayed for sale or exchange at the swap meet.