909.01 General provision. The requirements of authentication or identification as a condition precedent to admissibility are satisfied by evidence sufficient to support a finding that the matter in question is what its proponent claims. History: Sup. Ct. Order, 59 Wis. 2d R1, R329 (1973); 1975 c. 41. Unauthenticated ledger and signature cards bearing the entry […]
909.015 General provision; illustrations. By way of illustration only, and not by way of limitation, the following are examples of authentication or identification conforming with the requirements of s. 909.01: (1) Testimony of witness with knowledge. Testimony of a witness with knowledge that a matter is what it is claimed to be. (2) Nonexpert opinion […]
909.02 Self-authentication. Extrinsic evidence of authenticity as a condition precedent to admissibility is not required with respect to any of the following: (1) Public documents under seal. A document bearing a seal purporting to be that of the United States, or of any state, district, commonwealth, territory, or insular possession thereof, or the Panama Canal […]
909.03 Subscribing witness’ testimony unnecessary. The testimony of a subscribing witness is not necessary to authenticate a writing unless required by the laws of the jurisdiction whose laws govern the validity of the writing. History: Sup. Ct. Order, 59 Wis. 2d R1, R349 (1973).
