Definition
Contrainte par corps (French: "constraint by body") is a civil law procedure by which a debtor's person — rather than property — is seized and detained as a means of compelling payment of a debt or satisfaction of a civil obligation. In essence, it is civil imprisonment for debt: the creditor obtains a judicial order authorizing the arrest and detention of the debtor until the debt is discharged.
The mechanism operated as a coercive remedy distinct from criminal incarceration. The debtor was not punished for wrongdoing but held in custody to pressure performance of a private obligation. In French law and the civil law systems influenced by it, the remedy was historically available in defined categories of cases — including certain commercial debts, fraud, and obligations arising from a vendor's undertaking — and was subject to procedural conditions that distinguished it from arbitrary detention.
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Common Confusion
Contrainte par corps is sometimes loosely equated with debtor's prison in the common law tradition, but the analogy is imprecise. Common law imprisonment for debt operated through separate writs (notably capias ad satisfaciendum) within distinct procedural frameworks. Contrainte par corps is a specific civil law institution with its own doctrinal history, jurisdictional scope, and conditions of application. Researchers working across common law and civil law sources should not treat the terms as interchangeable.
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Why It Matters in Research
This term surfaces almost exclusively in three research contexts: French law and its colonial descendants, Louisiana legal history, and comparative law literature on debt enforcement. Researchers in each context face different hazards.
In French law sources, the procedure underwent significant legislative restriction over the nineteenth century. The Code de procédure civile as originally enacted permitted contrainte par corps in a range of civil matters; subsequent reforms progressively narrowed its scope, and it was ultimately abolished in France by legislation in 1867 for most civil debts, though it survived longer in commercial and quasi-criminal contexts. A source's date is therefore critical — a treatise describing the procedure as available may be accurately describing pre-reform law.
In Louisiana, where French civil law heritage is foundational, the term appears in early territorial and state-era legal materials. Researchers using nineteenth-century Louisiana case reporters or civil codes should be alert to the procedure's presence and to Louisiana's own legislative history regarding its retention or modification.
In comparative law literature, the term is a point of reference for discussions of the historical treatment of debtors across legal systems. It is frequently cited alongside English debt imprisonment and Roman law antecedents (nexum, actio iudicati) to map the evolution of creditor remedies. Cross-referencing these materials requires awareness that authors sometimes use "contrainte par corps" loosely to mean any civil arrest for debt rather than the specific French procedural institution.
The Black's entries are fragmentary — the second edition definition appears in a corrupted form that blends it with an unrelated contractor definition — and should not be relied upon as complete statements of the doctrine. Researchers needing substantive treatment should go directly to French civil procedure sources or Louisiana legal history scholarship.
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Historical Dictionary Support
Both Black's Law Dictionary editions define contrainte par corps as "the civil process of arrest of the person" in French law, with reference to its application to vendors. The entries are consistent but severely truncated; they establish the term's identity and civil (as opposed to criminal) character but do not address conditions of application, the legislative trajectory of the remedy, or its presence in jurisdictions outside France.
Neither edition addresses the 1867 French abolition, which postdates much of the classical French civil procedure literature the dictionaries drew upon. This creates a quiet trap: a researcher relying only on Black's will find no indication that the procedure was largely defunct in France by the late nineteenth century.
No significant divergence between the two editions exists on substance — the second edition entry is simply a reproduction of the first, with apparent typographical contamination from an adjacent entry on contractors. Researchers should note this artifact and not draw any interpretive weight from the second edition's garbled text.
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Jurisdictional Note
The procedure is native to French civil law and jurisdictions that adopted or adapted the French civil procedure tradition, including Louisiana, Quebec, and former French colonial territories. It has no direct common law equivalent, though analogous mechanisms (capias ad satisfaciendum, mesne process) existed in English practice. Researchers should not assume uniform application across civil law jurisdictions; each adopted, modified, or abolished the remedy on its own legislative timeline.
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