CALIFORNIA EVIDENCE: CIVIL AND CRIMINAL
...Writings
......Authentication
.........Manner of Authentication
............By Handwriting
7 Cards On This Topic:

Authentication by proving genuineness of handwriting.

Witness with personal knowledge of handwriting may provide personal opinion to authenticate.

Authentication through handwriting comparison by trier of fact.

Trial court did not prevent D's daughter from providing a handwriting exemplar to rehabilitate her after she admitted signing checks to man hired to kill D's husband-not relevant and handwriting expert could do same thing.

Under EC 1417, jury could compare D's signature on license with those on claim forms and reasonably conclude, without testimony from a handwriting expert, that questioned signatures were made by D.

Trier of fact may determine authorship of will by comparison with genuine or admitted handwriting of testator without aid of any testimony.

Credit card receipt or invoice may be adoptive admission of accuracy of contents if it can be shown that person read it before signing.