Ohio Evid.R. 901

(A) General provision

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

its proponent claims.

(B) 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 this rule:

(1) Testimony of witness with knowledge

Testimony that a matter is what it is claimed to be.

(2) Nonexpert opinion on handwriting

Nonexpert opinion as to the genuineness of handwriting, based upon

familiarity not acquired for purposes of the litigation.

(3) Comparison by trier or expert witness

Comparison by the trier of fact or by expert witness with specimens which

have been authenticated.

(4) Distinctive characteristics and the like

Appearance, contents, substance, internal patterns, or other distinctive

characteristics, taken in conjunction with circumstances.

(5) Voice identification

Identification of a voice, whether heard firsthand or through mechanical or

electronic transmission or recording, by opinion based upon hearing the

voice at any time under circumstances connecting it with the alleged

speaker.

(6) Telephone conversations

Telephone conversations, by evidence that a call was made to the number

assigned at the time by the telephone company to a particular person or

business, if (a) in the case of a person, circumstances, including self -

identification, show the person answering to be the one called, or (b) in the

case of a business, the call was made to a place of business and the

conversation related to business reasonably transacted over the telephone.

(7) Public records or reports

Evidence that a writing authorized by law to be recorded or filed and in fact

recorded or filed in a public office, or a purported public record, report,

statement or data compilation, in any form, is from the public office where

items of this nature are kept.

(8) Ancient documents or data compilation

Evidence that a document or data compilation, in any form, (a) is in such

condition as to create no suspicion concerning its authenticity, (b) was in a

place where it, if authentic, would likely be, and (c) has been in existence

twenty years or more at the time it is offered.

(9) Process or system

Evidence describing a process or system used to produce a result and

showing that the process or system produces an accurate result.

(10) Methods provided by statute or rule

Any method of authentication or identification provided by statute enacted

by the General Assembly not in conflict with a rule of the Supreme Court

of Ohio or by other rules prescribed by the Supreme Court.