Section 1421.
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. (Enacted by Stats. 1965, Ch. 299.)
Section 1401.
1401. (a) Authentication of a writing is required before it may be received in evidence. (b) Authentication of a writing is required before secondary evidence of its content may be received in evidence. (Enacted by Stats. 1965, Ch. 299.)
Section 1402.
1402. The party producing a writing as genuine which has been altered, or appears to have been altered, after its execution, in a part material to the question in dispute, must account for the alteration or appearance thereof. He may show that the alteration was made by another, without his concurrence, or was made with […]