Authentication of a writing means (a) the introduction of evidence sufficient to sustain a finding that it is the writing that the proponent of the evidence claims it is or (b) the establishment of such facts by any other means provided by law.
Cal. Evid. Code § 1400
Requirement of Authentication
Applied in 50 court decisions — leading case 25 Cal. 4th 19 - People v. Epps (2001)
Most recently applied in 11 Cal. 5th 259 - People v. Wilson (April 2021)
Enacted by Stats. 1965, Ch. 299.
How often courts cite this section
Court decisions citing this, by year. The dip in the last several years is a data-coverage gap, not a real trend — our corpus holds fewer opinions from the most recent years, so recent citations are undercounted.
Official source: California Legislative Information. Reproduced from public-domain California statutes; confirm against the official source for the current text. Not legal advice.