Legal term

Best evidence rule

Answer: Best evidence rule. Under FRE 1002, an original writing, recording, or photograph is required to prove its content, and the rule applies only when content is at issue. ([law.cornell.edu](https://www.law.cornell.edu/rules/fre/rule_1002?utm_source=openai)) Duplicates are admissible as the equivalent of the original unless authenticity is genuinely disputed or admission would be unfair. ([law.cornell.edu](https://www.law.cornell.edu/rules/fre/rule_1003?utm_source=openai)) If originals are lost or destroyed without bad faith, unobtainable by process, controlled by the opponent who fails to produce them after notice, or if the matter is collateral, other evidence of content is allowed. ([law.cornell.edu](https://www.law.cornell.edu/rules/fre/rule_1004?utm_source=openai)) Note: States generally mirror FRE Article X but terminology and statutory references may differ; always check your jurisdiction’s evidence code.

Rule to remember

Best evidence rule: When a party seeks to prove the content of a writing, recording, or photograph, the original is generally required; reliable duplicates are usually acceptable, and if originals are unavailable without bad faith or otherwise unobtainable, secondary evidence may be used. Applies only when proving content. States often track the FRE but wording varies.

Key elements and checks

• Trigger: attempt to prove the content of a writing, recording, or photograph (not merely the occurrence of an event).
• Preference: produce the original unless a rule or statute provides otherwise (FRE 1002).
• Duplicates: admissible as the original’s equivalent unless authenticity is genuinely disputed or admission would be unfair (FRE 1003).
• Exceptions (FRE 1004): originals lost/destroyed without bad faith; cannot be obtained by process; opponent had control and notice but fails to produce; collateral matter.
• Limit: The doctrine governs mode of proving contents; separate rules on authentication and hearsay still apply.
• State variation: Most states mirror Article X; terminology and local statutory references may differ—check your jurisdiction.

In the source’s words

“An original writing, recording, or photograph is required in order to prove its content unless these rules or a federal statute provides otherwise.”

Rule 1002. Requirement of the Original | Federal Rules of Evidence | US Law | LII / Legal Information Institute

“all the originals are lost or destroyed, and not by the proponent acting in bad faith”

Rule 1004. Admissibility of Other Evidence of Content | Federal Rules of Evidence | US Law | LII / Legal Information Institute

For exams, spot whether the party is proving content; then analyze original/duplicate status, and whether a FRE 1004 exception opens the door to other proof.

Sources

• Rule 1002. Requirement of the Original | Federal Rules of Evidence | US Law | LII / Legal Information Institute
• Rule 1003. Admissibility of Duplicates | Federal Rules of Evidence | US Law | LII / Legal Information Institute
• Rule 1004. Admissibility of Other Evidence of Content | Federal Rules of Evidence | US Law | LII / Legal Information Institute