Fed. R. Evid. 403 — Excluding Relevant Evidence for Prejudice, Confusion, Waste of Time, or Other Reasons
Plain English
The workhorse exclusion. Even relevant evidence can be kept out if its probative value is substantially outweighed by certain dangers—unfair prejudice, confusing the issues, misleading the jury, undue delay, wasting time, or needlessly cumulative evidence. Note the thumb on the scale: it must be “substantially” outweighed, so the balance favors admission.
From the Courtroom
This is where most evidence fights are actually won. The key words are “substantially outweighed”—the rule tilts toward admission, so as the proponent you start ahead. As the objector, show the prejudice is unfair (not merely damaging) and that it substantially outweighs real probative value. Tie your argument to a specific listed danger; a generic “it’s prejudicial” loses.
Key Points & Authority
- Discretionary exclusion of relevant evidence when probative value is substantially outweighed by enumerated dangers.
- The dangers: unfair prejudice, confusing the issues, misleading the jury, undue delay, wasting time, or needless cumulative evidence.
- “Substantially outweighed” tilts the balance toward admission.
Florida Parallel
Florida Parallel: Fed. R. Evid. 403 corresponds to § 90.403, Fla. Stat. (Exclusion on grounds of prejudice or confusion). Both apply a “substantially outweighed” balancing test; Florida’s enumerated list of dangers is somewhat narrower. Cross-reference is text-only for now; live links added in a later interlinking pass.
About this rule walkthrough
Part of The Evidence Code, hosted by John M. Phillips — Board Certified Civil Trial Lawyer, Court TV analyst, admitted in 8 states + 9 federal districts + SCOTUS.
Free consultation: (904) 444-4444 · About John Phillips
Educational only — not legal advice.
Rule Text (verbatim from the Florida Supreme Court)
The court may exclude relevant evidence if its probative value is substantially outweighed by a danger of one or more of the following: unfair prejudice, confusing the issues, misleading the jury, undue delay, wasting time, or needlessly presenting cumulative evidence.
Educational reference. Educational summary of the Federal Rules of Evidence, not legal advice.
What this rule means in plain English
The workhorse exclusion. Even relevant evidence can be kept out if its probative value is substantially outweighed by certain dangers—unfair prejudice, confusing the issues, misleading the jury, undue delay, wasting time, or needlessly cumulative evidence. Note the thumb on the scale: it must be “substantially” outweighed, so the balance favors admission.