Fed. R. Evid. 401 — Test for Relevant Evidence
Plain English
The definition of relevance—and it is a low bar. Evidence is relevant if it has any tendency to make a fact of consequence more or less probable. Two requirements: it must move the needle at all (probative value), and the fact it bears on must matter to the case (materiality).
From the Courtroom
“Any tendency” is deliberately generous—relevance is rarely the real fight; Rule 403 is. Do not over-argue relevance; establish the minimal logical link and the fact’s consequence to the case, then defend the 403 balancing. A brick is not a wall: each piece of evidence need only move some fact a little.
Key Points & Authority
- Probative. Any tendency to make a consequential fact more or less probable.
- Material. The fact must be of consequence in determining the action.
- Low threshold. Relevance is easy to clear; the admissibility battle usually shifts to Rule 403.
Florida Parallel
Florida Parallel: Fed. R. Evid. 401 corresponds to § 90.401, Fla. Stat. (Definition of relevant evidence). Both define relevance by a tendency to prove or disprove a material fact. 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)
Evidence is relevant if:
(a) it has any tendency to make a fact more or less probable than it would be without the evidence; and
(b) the fact is of consequence in determining the action.
Educational reference. Educational summary of the Federal Rules of Evidence, not legal advice.
What this rule means in plain English
The definition of relevance—and it is a low bar. Evidence is relevant if it has any tendency to make a fact of consequence more or less probable. Two requirements: it must move the needle at all (probative value), and the fact it bears on must matter to the case (materiality).