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Evidence

Burden of Proof

The obligation to prove a claim, defense, or issue to the required legal standard.

Plain-English definition

The burden of proof answers two questions: who has to prove something, and how convincing the proof must be. In civil cases, plaintiffs usually carry the burden on their claims. In criminal cases, the government carries the burden of proving guilt beyond a reasonable doubt.

How it works

Burden questions appear in jury instructions, summary judgment motions, evidentiary presumptions, affirmative defenses, and appeals.

Why it matters

A party can lose even with some evidence if it carried the burden and the evidence did not reach the required level of certainty.

Related terms

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Not legal advice. Definitions are for general reference. Consult an attorney before relying on any term in a real case.