Library · Legal reference

Important Legal Definitions

Explore legal terms, clear definitions and practical examples.

← All definitions

Intervenor

Jurisdictional & Appellate Practice Terms

Definition

A third party who is not an original plaintiff or defendant in a lawsuit, but who petitions the court for permission to participate in the proceedings because the judgment will directly or indirectly affect their legal rights or public policy interests.

Example

During a constitutional challenge to environmental clearance rules for coastal highways, an association of traditional artisanal fishermen files an application to participate as an intervenor to protect fishing rights.