Intervener

/ɪnˈtɜːrvɪnər/

Definitions

  1. (n.) A party who voluntarily joins ongoing litigation to protect their own interest without being initially named as a plaintiff or defendant.
    The intervener provided additional evidence to support their claim during the trial.

Forms

  • interveners

Commentary

An intervener must usually obtain court permission or meet specific criteria to join a case; note the distinction from amicus curiae who offers information without becoming a party.

This glossary is for general informational and educational purposes only. Definitions are jurisdiction-agnostic but reflect terminology and concepts primarily drawn from English and American legal traditions. Nothing herein constitutes legal advice or creates a lawyer-client relationship. Users should consult qualified counsel for advice on specific matters or jurisdictions.

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