Home › Mississippi › Rules of Evidence › Rule 701

Court Rules Network • courtrules.net

Miss. R. Evid. 701

Not legal advice. Verify against official sources before relying on this text in any legal matter.

Rule 701 Opinion Testimony by Lay Witnesses

Article VII: Opinions and Expert Testimony

← Previous Rule 617: Taking Testimony of a Child by Closed Circuit Television Next → Rule 702: Testimony by Expert Witnesses

Rule Text

If a witness is not testifying as an expert, testimony in the form of an opinion is limited to one that is:

(a) rationally based on the witness’s perception;

(b) helpful to clearly understanding the witness’s testimony or to determining a fact in issue; and

[Amended March 2, 1987, effective October 1, 1987; amended April 17, 2000, effective December 1, 2000; amended effective May 29, 2003 to prohibit opinion testimony under Rule 701 based on scientific, technical, or other specialized knowledge within the scope of Rule 702; restyled effective July 1, 2016.]

Plain-English Summary (for reference only — not a substitute for the rule text above)

This summary is not the rule. The rule text controls.

Regular witnesses, meaning people who are not experts, can sometimes give their opinion in court. But there are limits on what kind of opinions they can share.

First, the opinion has to come from what the witness actually saw, heard, or otherwise experienced firsthand. They can't guess or speculate about things they have no personal knowledge of. Second, the opinion needs to actually help the jury or judge understand the witness's testimony or figure out an important fact in the case. It can't just be a random comment that doesn't add anything useful.

Third, and this is important, the witness cannot give opinions that require special training, technical knowledge, or scientific expertise. That kind of testimony can only come from a qualified expert witness under a different rule. For example, a regular witness can say a car "seemed to be going really fast" because that's based on what they saw. But they can't testify about the exact speed based on skid marks and physics calculations. That would require expert knowledge.

This rule keeps everyday witnesses focused on sharing what they personally observed, while making sure technical or scientific opinions come from properly qualified experts.

Committee Notes

Advisory Committee Historical Note

Effective July 1, 2016, the Rule was amended as part of the general restyling of the Evidence Rules.

Effective June 16, 2016, the “Comment” was retitled “Advisory Committee Note.”

Advisory Committee Note

The language of Rule 701 has been amended as part of the general restyling of the Evidence Rules to make them more easily understood and to make style and terminology consistent throughout the rules. These changes are intended to be stylistic only. There is no intent to change any result in any ruling on evidence admissibility.

All reference to an “inference” has been deleted, on the grounds that the deletion made the Rule flow better and easier to read, and because any “inference” is covered by the broader term “opinion.” Courts have not made substantive decisions on the basis of any distinction between an opinion and an inference. No change in current practice is intended.

The traditional rule regarding lay opinions has been, with some exceptions, to exclude them from evidence. Rule 701 is a departure from the traditional rule. It favors the admission of lay opinions when two considerations are met. The first consideration is the familiar requirement of first-hand knowledge or observation. The second consideration is that the witness’s opinion must be helpful in resolving the issues. Rule 701, thus, provides flexibility when a witness has difficulty in expressing the witness’s thoughts in language which does not reflect an opinion. Rule 701 is based on the recognition that there is often too thin a line between fact and opinion to determine which is which.

The 2003 amendment of Rule 701 makes it clear that the provision for lay opinion is not an avenue for admission of testimony based on scientific, technical or specialized knowledge which must be admitted only under the strictures of Rule 702.

[Amended effective May 29, 2003; “Advisory Committee Note” substituted for “Comment,” effective June 16, 2016; amended July 1, 2016, to note restyling.]

← Previous Rule 617: Taking Testimony of a Child by Closed Circuit Television Next → Rule 702: Testimony by Expert Witnesses

Cross-References

References (1)

Miss. R. Evid. Rule 702

Bluebook Citation

Miss. R. Evid. 701

This Rule Set

View All Miss. R. Evid. Rules

Last updated: September 2026

Report an error