Also known as:substantially outweigh · substantially outweighed · substantially outweighing · substantial outweighing
Written by attorneys · grounded in primary & secondary sources — see below
A standard for excluding relevant evidence when the probative value of the evidence is substantially outweighed by a danger of unfair prejudice, confusing the issues, misleading the jury, undue delay, wasting time, or needlessly presenting cumulative evidence. The standard also governs disclosure of otherwise inadmissible facts or data underlying an expert opinion and admission of remote convictions.
Sources & Authorities· 9 primary sources
Select any source to read its text and confirm it supports the definition.
Cases
Statutes
Federal Rules
Uniform Acts
Study Supplements
How it applies
Common Examples
6
Expert Disclosure of Inadmissible Data
Sylvia Santos retained an economist to calculate lost profits in her contract suit against Sentinel Security. The expert relied on internal company memos that would be inadmissible hearsay. The court permitted the expert to disclose the memos after finding that their value in explaining the opinion substantially outweighed any prejudicial effect.
Prior Act Evidence Under 404(b)
The government offered evidence that Sasha Stone had previously used a false identity to open bank accounts. The court admitted the evidence on the issue of intent after determining that its probative value on that non-propensity issue was not substantially outweighed by the danger of unfair prejudice.
Cumulative Video Evidence
Stella Shapiro offered more than a dozen dashcam recordings of unrelated minor collisions to show a trucking company's pattern of unsafe operation. The court excluded the recordings because their limited probative value was substantially outweighed by the danger of confusing the issues and wasting time.
Prior Conviction Record Despite Stipulation
Sebastian Santos offered to stipulate that he was a felon in his felon-in-possession prosecution. The government nevertheless sought to introduce the full record of his prior national-security conviction. The court excluded the details because the risk of unfair prejudice substantially outweighed the probative value once the stipulation removed any need for the name or nature of the offense.
Remote Conviction for Impeachment
Sophia Singh sought to impeach a witness with a twelve-year-old conviction for falsifying expense vouchers. The court excluded the conviction after finding that its probative value on credibility did not substantially outweigh its prejudicial effect given the passage of time and the short period of confinement.
Expert Basis Disclosure at Trial
Sydney Santos's DNA expert relied on a lab report containing statements from an unavailable analyst. The court allowed limited disclosure of the report to the jury after concluding that the probative value of the disclosure in helping the jury evaluate the opinion substantially outweighed any prejudicial effect.
Williams v. Illinois567 U.S. 50 (2012)
Common questions
Frequently Asked
4
What must a court find before excluding evidence under the substantially outweighs standard?+
The court must determine that the probative value of the evidence is substantially outweighed by a danger of unfair prejudice, confusing the issues, misleading the jury, undue delay, wasting time, or needlessly presenting cumulative evidence. Equal weight or only a slight tipping toward prejudice is not enough to exclude the evidence.
How does the substantially outweighs standard apply to disclosure of facts underlying an expert opinion?+
When facts or data underlying an expert opinion would otherwise be inadmissible, the proponent may disclose them to the jury only if their probative value in helping the jury evaluate the opinion substantially outweighs their prejudicial effect.
Does the substantially outweighs standard change for remote convictions offered for impeachment?+
Yes. For convictions more than ten years old, evidence is admissible only if the proponent shows that the probative value, supported by specific facts and circumstances, substantially outweighs the prejudicial effect and that reasonable written notice was given.
When a defendant offers to stipulate to a prior conviction, how does the substantially outweighs standard apply?+
The government's refusal to accept the stipulation and introduction of the full record may result in unfair prejudice that substantially outweighs the probative value, especially when the defendant's status as a felon is the only fact at issue.
by the danger of unfair prejudice. At trial, the government introduced the testimony of the officers involved in the two prior incidents. The district court gave the jury a limiting…
substantially outweighs
whatever burden denial of tax benefits places on petitioners' exercise of their religious beliefs. The interests asserted by petitioners cannot be accommodated with that compelling…
by its prejudicial impact or potential for misleading the jury. See, e. g. , Fed. Rule Evid. 403; N. H. Rule Evid. 403 (2011). In appropriate cases, some States also permit defendants to…
EvidencePresentation of evidence · Impeachment, contradiction, and rehabilitationUBEIntermediate