Requirement of auth/ID
must show ev sufficient to support a finding that the matter is what it purports to be.
Authenticating intrinsic evidence
generally, self-authenticating
Authenticating extrinsic evidence
Generally need a witness.
Direct ev - someone w/ personal knowledge of or familiarity w/ the item, or a custodian of records.
circumstantial - chain of custody, ancient docs, other distinctive characteristics.
Handwriting authentication
Voice authentication
opinion of a person who has heard speaker at any time, even if familirity is acquired for the litigation.
Certain documents need no foundation witness to prove they are genuine. CONTAC
Certified docs Official publications Newspapers and periodicals Trade inspections Acknowledged documents Commercial paper