In the
law,
testimony is a form of
evidence that is obtained from a
witness who makes a solemn statement or
declaration[?] of fact. Testimony may be verbal or written, and it is usually made by
oath[?] or
affirmation under penalty of
perjury. Unless a witness is testifying as an
expert witness, testimony in the form of opinions or inferences is generally limited to those opinions or inferences which are rationally based on the perceptions of the witness and are helpful to a clear understanding of the witness' testimony.
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