California Code
ARTICLE 2 - Inspection and Sampling
Section 110160.

110160. It is unlawful for any person to refuse to permit entry or inspection, the taking of samples or other evidence, or access to copying of any record as authorized by this part, or to conceal the samples or evidence, or withhold evidence concerning them.

(Added by Stats. 1995, Ch. 415, Sec. 6. Effective January 1, 1996.)