Wis. Stat. § 907.01
Opinion testimony by lay witnesses
Redline — January 1, 2003 → current.View current text →
Current — January 1, 2011
As of January 1, 2003
If the witness is not testifying as an expert, the witness's testimony in the form of opinions or inferences is limited to those opinions or inferences which are rationally based on the perception of the witness and helpful to a clear understanding of the witness's testimony or the determination of a fact in issue.
If the witness is not testifying as an expert, the witness's testimony in the form of opinions or inferences is limited to those opinions or inferences which are all of the following:
(1) Rationally based on the perception of the witness.
(2) Helpful to a clear understanding of the witness's testimony or the determination of a fact in issue.
(3) Not based on scientific, technical, or other specialized knowledge within the scope of a witness under s. 907.02 (1) .
Official source: Wisconsin State Legislature. Reproduced from public-domain Wisconsin statutes; confirm against the official source for the current text. Not legal advice.