Relevance (law)
Evidence's tendency to prove or disprove a legal element.
U.S. Army USArmyEURAF by Susanne Goebel · Public domain
Relevance is a foundational concept in the common law of evidence, referring to the tendency of a given item of evidence to prove or disprove one of the legal elements of a case, or to have probative value that makes one of those elements likelier or not. Under the Federal Rules of Evidence (United States), relevance is defined as evidence having any tendency to make a fact of consequence more or less probable than it would be without the evidence, incorporating both materiality and probative value. The concept is not an inherent characteristic of evidence but exists only as a relation between an item of evidence and a matter properly provable in the case.
- field
- Law of evidence
- jurisdictions
- United States, Canada, Australia
- core_definition
- Tendency to make a fact of consequence more or less probable
Lore & Background
In Australia, the uniform Evidence Act applies in most states and territories. Evidence is relevant if it could rationally affect the assessment of the probability of a fact in issue. Logical relevance requires only a logical connection, and even slight probative value suffices for admissibility. However, evidence may be excluded if its probative value is substantially outweighed by the danger of unfair prejudice, a test known as 'legal relevance.'
Reader's Guide
Relevance serves as the fundamental touchstone for admissibility of evidence in common law systems. The concept ensures that only evidence with probative value—tending to prove or disprove a fact of consequence—is considered by the trier of fact. Public policy also excludes certain relevant evidence, such as liability insurance, subsequent remedial measures, settlement offers, and plea negotiations, to encourage socially beneficial behavior. The preservation of legal error for review requires specific and timely objections; a mere objection on relevance grounds may not preserve an error based on the balancing test. Across jurisdictions, the core principle remains that evidence must have a logical connection to the facts in issue, but courts retain discretion to exclude evidence that would unfairly prejudice the proceedings.
Did You Know?
- Under the Federal Rules of Evidence, relevant evidence may be excluded if its probative value is substantially outweighed by its prejudicial value.
- The Advisory Committee notes state that relevancy is not an inherent characteristic of evidence but exists only as a relation between an item of evidence and a matter properly provable in the case.
- In Canada, the Supreme Court in R. v. Wray held that judges do not have discretion to exclude evidence because of how it was obtained, only for little probative value with great prejudicial effect.
- In Australia, evidence that is of only slight probative value will be admissible, just as at common law.
Gallery
Frequently Asked Questions
What is Relevance (law)?
Relevance is a core principle in the common law of evidence that asks whether a piece of information has any tendency to make a legally significant fact more or less probable. It is the threshold gate every item of proof must pass before a court will even consider admitting it.
How does the US Federal Rules of Evidence define relevance?
Under FRE 401, evidence is relevant if it has any tendency to make a fact of consequence to the case more or less probable than it would be absent that evidence. This single definition folds together two older sub-concepts—materiality and probative value—into one streamlined test.
Is relevance an inherent quality of the evidence itself?
No. Relevance is not a fixed trait of a document, statement, or object; it is a relational judgment that only exists in connection with a particular fact in issue. The same piece of information can be relevant in one case and entirely irrelevant in another depending on what the parties must prove.
What two older ideas does the modern relevance standard combine?
The contemporary formulation absorbs materiality (the evidence must touch on an element the party is required to establish) and probative value (the evidence must actually shift the likelihood of that element). Both must be satisfied, though the FRE uses the deliberately low bar of 'any tendency' rather than requiring proof beyond a reasonable doubt.
In which legal systems does the relevance concept as described apply?
The relational, tendency-based formulation of relevance is a hallmark of common-law evidence systems, most prominently in the United States, Canada, and Australia. Civil-law jurisdictions handle admissibility and weight of proof through different doctrinal frameworks, so this particular articulation does not map neatly onto them.
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