Evidence Code section 1421

A writing may be authenticated by evidence that the writing refers to or states matters that are unlikely to be known to anyone other than the person who is claimed by the proponent of the evidence to be the author of the writing.

Source: Section 1421, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=EVID§ionNum=1421. (updated Jan. 1, 1965; accessed Dec. 15, 2025).

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Up to date

Verified:
Dec. 15, 2025

§ 1421's source at ca.gov

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Location: https://california.public.law/codes/evidence_code_section_1421

Original Source: Section 1421, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=EVID§ionNum=1421. (last accessed May 12, 2025).