Skip to contentThe 2026 report on adversarial matter intelligence · read now
Litigation glossary

Burden of Proof

The obligation to prove a claim to a required standard - and the risk of losing if you fall short.

Browse the glossary

Burden of proof is really two ideas bundled together. The burden of production is the duty to put forward enough evidence on an issue for it to be considered at all; fail it and the issue can be taken away before a jury ever weighs in. The burden of persuasion is the duty to convince the factfinder to the required degree of certainty. The party carrying the burden on a given element loses that element if the evidence leaves the question a genuine tie.

Who carries the burden, and to what standard, shapes the entire strategy of a case. Generally the party asserting a claim must prove its elements, while a party raising an affirmative defense must prove that. The standard varies by context: most civil claims use the preponderance standard, some require clear and convincing evidence, and criminal cases demand proof beyond a reasonable doubt. The burden can also shift between parties on specific issues as the case develops.

Because the burden determines who loses in the face of uncertainty, it is not a technicality but a core driver of value. Juricratic treats each element as its own contest with the correct standard attached, so the model reflects that a plaintiff must carry every element while a defendant can win by defeating a single one. That asymmetry is often where the real leverage in a case lives.

In litigation

How it actually shows up

Strategically, the burden tells each side where to spend effort. A plaintiff must build enough proof on every element to clear the standard, so a single weak element is a liability; a defendant can concentrate fire on the weakest link, because defeating one element defeats the claim. Framing a case around which side bears the burden on which issue, and how close each contested element sits to the line, is central to both motion practice and trial planning.

Questions
What is the burden of proof?
It is the obligation to prove a claim or defense to a required level of certainty, plus the risk of losing if the evidence falls short. It splits into the burden of production, which is putting forward enough evidence to reach the factfinder, and the burden of persuasion, which is actually convincing them to the applicable standard.
Who has the burden of proof in a civil case?
Generally the party asserting a claim bears the burden on its elements, typically to a preponderance of the evidence, while a party raising an affirmative defense bears the burden on that defense. The burden can also shift between the parties on particular issues as the case develops, so it is assigned element by element.
What happens if the burden of proof is not met?
The party carrying the burden loses on that issue. If they fail the burden of production, the issue can be removed from the case before it reaches a jury, for example on summary judgment. If they meet production but not persuasion, the factfinder should resolve the tie against them and reject the claim or defense.

This page is an educational explainer, not legal advice, and creates no attorney–client relationship. Juricratic is a simulation engine: every probability-like figure is a dial you set, not a calibrated prediction. Verify every rule, deadline, and figure against the authorities and orders that govern your matter.

Turn the concept into a modeled matter.

Juricratic makes every one of these ideas a live dial: model your case as a solvable game, then watch the optimal line and the settlement window move as the assumptions do.

Request access
simulation, not prediction — not legal advice