2.04.490 [Rule 46] Authentication and Identification:

Requirement of Authentication or Identification

(a) General. The requirement of authentication or identification as a condition precedent to admissibility is satisfied by evidence sufficient to support a finding that the matter in question is what it's proponent claims.

(b) Illustrations. The following are illustrative examples conforming with this Rule, and are not limitations:

(1) Testimony by a witness with knowledge that the matter is what it claimed to be.

(2) Characteristics in appearance, contents, substance, internal patterns, taken in conjunction with circumstances which support that the matter is what it is claimed to be.

(3) Voice identification: Identification of a voice, whether heard or through mechanical or electronic transmission or recording, by opinion based upon hearing the voice at any other time under circumstances connecting it with the alleged speaker.

(4) Telephone conversations, by evidence that a call was made to the number assigned at the time by the phone company to a person or business, if:

(A) To a person, circumstances include self-identification, showing the person answering the phone to be the one called, or

(B) To a business, the call was made to a place of business and the conversation related to business reasonably transacted over the phone.

(5) Public records or reports: Evidence that a writing authorized by law to be recorded or filed and in fact was recorded or filed in the public office where such items are kept.