Also known as:nonmutual collateral estoppel · non mutual collateral estoppel · nonmutual issue preclusion
Written by attorneys · grounded in primary & secondary sources — see below
A doctrine of issue preclusion that permits a party who was not involved in a prior action to prevent a party who litigated and lost an issue in that action from relitigating the same issue in a subsequent suit. Application requires that the issue was actually litigated and necessarily decided in a prior proceeding that ended in a valid final judgment. The doctrine further demands that using the prior determination offensively against the losing party must be fair under all the circumstances.
Sources & Authorities· 1 primary source
Select any source to read its text and confirm it supports the definition.
Cases
Course Outlines
Study Supplements
How it applies
Common Examples
2
Pension Fund Uses Prior SEC Finding
The Securities Commission obtained a final judgment after a bench trial establishing that Apex Capital knowingly misrepresented the risk profile of certain mortgage-backed instruments. Harborview Pension Fund, which purchased different tranches of the same instruments, later sued Apex for damages and moved to preclude Apex from contesting its knowledge of the misrepresentations. Because Apex had a full and fair opportunity to litigate the knowledge issue in the enforcement action and the stakes provided strong incentive to defend vigorously, the court grants the motion and prevents relitigation of that element.
Landowners Invoke Agency Judgment
The National Environmental Agency obtained a final judgment after a bench trial finding that GreenWaste knowingly submitted false emissions monitoring data for its landfill. Nearby landowners then sued GreenWaste for property damage caused by the same emissions and moved to preclude GreenWaste from relitigating whether it knowingly submitted false data. The court grants the motion because the identical issue was actually litigated and necessarily decided in the enforcement action, GreenWaste had every incentive to defend vigorously there, and no procedural unfairness or inconsistent judgments exist.
Nanninga v. Three Rivers Electric Co-op.203 F.3d 529, 534-535 (8th Cir. 2000), rehearing en banc 236 F.3d 902 (8th Cir. 2000)
Common questions
Frequently Asked
4
When may a new plaintiff use a prior judgment offensively against a defendant who was not its opponent in the first case?+
A new plaintiff may invoke offensive nonmutual issue preclusion when the defendant previously litigated and lost the identical issue in a prior action that ended in a valid final judgment. The issue must have been actually litigated and necessarily decided. Courts permit the use only when applying preclusion is fair to the defendant under all the circumstances, considering factors such as the defendant's incentive to litigate vigorously in the first action and the absence of procedural disadvantages.
Supporting sources
Does the fact that the first action was brought by a government agency prevent later private plaintiffs from relying on the judgment?
No. A government enforcement action can supply the predicate judgment for offensive nonmutual issue preclusion. The key inquiry remains whether the defendant had a full and fair opportunity to litigate the issue and whether applying the prior finding would be equitable. Courts routinely allow private plaintiffs to rely on factual determinations made in earlier governmental proceedings when those fairness factors are satisfied.
Supporting sources
What fairness considerations may defeat offensive nonmutual issue preclusion?+
Fairness may be lacking when the defendant faced materially lower stakes in the first action than in the second, when the defendant lacked a comparable procedural opportunity such as a jury trial, when the second plaintiff could have joined the first action but waited to see the outcome, or when inconsistent judgments already exist. A dramatic increase in potential liability or a change in the nature of the remedy can render preclusion inequitable even if the elements of issue preclusion are otherwise met.
Supporting sources
May a defendant who lost in the first action later assert the judgment offensively against new plaintiffs?+
No. Offensive nonmutual issue preclusion is available only to a new plaintiff seeking to bind a defendant who previously lost the issue. The losing defendant cannot turn the prior judgment into a sword against later plaintiffs who were not parties to the first case.
Supporting sources
Civil ProcedureVerdicts and judgments · Effect; claim and issue preclusionUBEFoundational