Definition
A special injunction is a prohibitory writ or interdict issued by a court of equity to restrain a specific party from performing or continuing a particular act or course of conduct. Unlike a general injunction, which operates broadly against a class of acts, a special injunction is precisely tailored — it names the restrained conduct with particularity and is directed to an identifiable defendant in response to a specific factual situation.
The term encompasses both interlocutory relief granted during the pendency of litigation and permanent relief granted at final judgment. A special injunction may restrain a party from completing construction, publishing specific material, breaching a named contractual obligation, violating a restrictive covenant, or continuing a nuisance — so long as the prohibited act is identified with specificity in the writ itself.
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Common Confusion
SPECIAL INJUNCTION vs. GENERAL INJUNCTION: A general injunction broadly restrains a party from a category of conduct; a special injunction restrains a precisely identified act. The distinction matters most in enforcement: contempt proceedings for violation of a special injunction require showing breach of the specific prohibition as written, while a general injunction's scope may itself become a contested issue.
SPECIAL INJUNCTION vs. PRELIMINARY/PERMANENT INJUNCTION: These classifications operate on different axes. Preliminary and permanent describe the injunction's temporal stage in litigation. Special describes the character and specificity of the relief. A special injunction can be either preliminary or permanent.
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Core Elements
For a special injunction to issue, the moving party must typically demonstrate:
1. A specific, identifiable act or course of conduct to be restrained — the injunction must be capable of precise statement in the writ.
2. A cognizable legal or equitable right being threatened or violated by that act.
3. Irreparable harm or inadequacy of legal remedies if the conduct is permitted to continue.
4. That the balance of hardships favors restraint and, where preliminary, that there is a likelihood of success on the merits.
The precision requirement is not merely formal. Courts have vacated injunctions that failed to describe the restrained conduct with sufficient clarity to put the defendant on notice of what is forbidden.
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Why It Matters in Research
The term "special injunction" is primarily a classification term of historical equity practice. Modern American courts rarely use the phrase in contemporary opinions; practitioners and judges today are more likely to speak of preliminary injunctions, permanent injunctions, or targeted restraining orders. Researchers encountering "special injunction" in 19th- or early 20th-century materials should understand it as the period's standard vocabulary for particularized prohibitory relief — not a distinct procedural mechanism unique to that era, but a naming convention that has since faded.
This matters practically: a search for "special injunction" in modern case databases will return thin results, but the underlying doctrine is alive and well under different labels. The researcher's task is to translate the historical classification into modern equivalents and search accordingly.
In equity treatises and digests from roughly 1820 through the early 20th century — including materials in the Law Mind corpus — "special injunction" frequently appears as a heading organizing cases by subject matter (special injunctions against waste, special injunctions in patent disputes, etc.). Researchers should treat these as subject-matter groupings, not as references to a separate equitable remedy.
The procedural overlay also shifted significantly with the merger of law and equity under the Federal Rules of Civil Procedure (1938). Rule 65 displaced much of the prior procedural vocabulary. Sources predating merger use "special injunction" in a procedural context that no longer directly maps to modern practice.
Injunction bonds and security requirements — now governed by Rule 65(c) — were already associated with the issuance of special injunctions in equity practice, providing a thread of continuity from historical sources to modern procedure.
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Historical Dictionary Support
Rapalje & Lawrence define special injunctions as "prohibitory writs or interdicts against acts of" — the entry as preserved is fragmentary, but the definition aligns with the standard equity usage of the period. The characterization as a "prohibitory writ or interdict" reflects the classical equity vocabulary distinguishing mandatory from prohibitory injunctions, and particularized (special) from general relief.
Historical legal dictionaries of this era, including Bouvier's and Black's early editions, treat the special/general injunction distinction as a routine taxonomic division within the broader law of injunctions. None of the major period dictionaries treats special injunctions as a separate cause of action or as a remedy available at law — it is understood throughout as a creature of equity jurisdiction.
What historical sources tend to omit: any treatment of the procedural consequences of Rule 65, the irreparable harm standard as formalized in modern equity doctrine, or the four-factor balancing test that now governs injunctive relief in federal courts. Researchers should not read historical entries as complete accounts of the modern standard.
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Jurisdictional Note
State courts that retain independent equity practice may apply procedural requirements for injunctive relief that differ from Rule 65. Some states continue to use terminology — including "special injunction" — that has largely disappeared from federal practice. California, New York, and Delaware equity practice are particularly worth examining when historical vocabulary appears in state-law contexts.
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Encyclopedia Cross-Reference
The Law Mind Remedies & Equity Encyclopedia: Injunction Bonds — Rule 65(c), Amount, and Wrongful Injunction Damages (remedies_27)
The Law Mind Contracts & Commercial Law Encyclopedia: Remedies — Injunctive Relief in Contract Disputes (contracts_90)
The Law Mind Employment & Labor Law Encyclopedia: Injunctive Relief and Enforcement of Restrictive Covenants (employment_132)
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