Definition
Mutilation has two distinct legal meanings, one in criminal law and one in the law of documents.
1. Criminal law. The act of depriving a person of a limb or bodily member that would be useful to him in combat or self-defense, the loss of which constitutes mayhem. This sense is closely tied to the common-law crime of mayhem and focuses on permanent, disabling injury to functional body parts.
2. Documents and records. The act of rendering a written instrument — such as a will, deed, court record, or official document — imperfect or incomplete by removing, cutting away, or destroying an essential part. A document is mutilated when a material portion is physically taken from it in a way that alters its legal completeness or authenticity, short of total destruction. Partial obliteration, erasure, or tearing that removes words or provisions of legal significance can constitute mutilation.
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Common Language
Modern common usage (Wiktionary): The act of mutilating or the state of being mutilated.
Historical common usage (Webster's 1913): The act of mutilating, or the state of being mutilated; deprivation of a limb or of an essential part.
The common meaning tracks the criminal-law definition reasonably well but misses the document context entirely. A researcher encountering "mutilation" in cases involving wills, court records, or official instruments should not default to the bodily-harm sense — in that context the word carries a distinct technical meaning focused on legal completeness, not physical injury.
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Common Confusion
Mutilation is frequently conflated with destruction or cancellation when applied to documents. The distinction matters: destruction eliminates the document entirely, while mutilation leaves an imperfect instrument. Cancellation, in the context of wills, may be an intentional act with legal effect (revocation), whereas mutilation may be unintentional or done by a third party and raises different questions about the document's continued validity. In the criminal law context, mutilation is often used loosely as a synonym for mayhem, but technically mayhem is the offense; mutilation describes the act that constitutes it.
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Recognized Forms
/SUBTYPES
1. Mutilation of a person (criminal): The disabling injury to a limb or member; the factual predicate of common-law mayhem.
2. Mutilation of a will: Physical alteration of a testamentary instrument by removal of a material part. Raises questions of revocation, intent, and whether the remaining text can be probated.
3. Mutilation of court records or public documents: A separate offense in many jurisdictions, targeting the integrity of official instruments. Distinguished from forgery in that forgery involves adding false content; mutilation removes genuine content.
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Why It Matters in Research
The two-meaning structure of this term creates a genuine trap in corpus research. A full-text search for "mutilation" across historical materials will return results from criminal law, probate, and records law — three distinct doctrinal areas with no shared analytical framework. Filter by document type and procedural context before assuming which sense is operative.
In criminal law sources, mutilation is almost never treated as a standalone concept. Historical dictionaries and treatises route it immediately to mayhem, so researchers should expect thin standalone coverage and plan to follow the mayhem chain. The Blackstone citation (1 Bl. Comm. 130) appears across Black's, Rapalje, and Bouvier with near-identical language, indicating this is inherited text rather than independent analysis. Do not treat repetition across these sources as corroborating authority — they are drawing from the same upstream source.
In probate and evidence contexts, the document-mutilation sense appears with considerably more independent legal development. The Second Edition of Black's adds the document definition that earlier editions and Bouvier omit entirely, which suggests the document sense became more legally prominent as records law developed in the late nineteenth century. Researchers working with pre-1890 sources should expect that "mutilation" in legal texts almost certainly refers to the criminal/mayhem sense unless context clearly indicates otherwise.
For researchers examining statutes: modern criminal codes have largely absorbed mutilation into assault, aggravated assault, or mayhem provisions, often without using the word "mutilation" at all. Separately, records-tampering statutes may use "mutilation," "defacement," or "destruction" interchangeably or with distinct meanings. Statutory definitions control and will not always match the common-law sense preserved in historical dictionaries.
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Historical Dictionary Support
All four source dictionaries agree on the criminal-law definition and all trace it to the same passage in Blackstone. This unanimity reflects inheritance of a standard formulation rather than independent doctrinal analysis, and researchers should treat it accordingly.
Bouvier and the First Edition of Black's are essentially identical on the criminal sense, adding nothing beyond the Blackstone citation and the cross-reference to mayhem. Rapalje adds the same substance but also notes the related concepts of mutiny and mutual combat in surrounding entries, reflecting the dictionary's case-citation format rather than substantive doctrinal expansion.
The most important divergence is the Second Edition of Black's, which breaks new ground by addressing mutilation of written documents — a definition absent from the other three sources. This reflects the edition's broader scope and the growing legal significance of document integrity in courts of record. The document definition is unaccompanied by case citations in the available text, which limits its authority as a standalone source but makes it useful as a signal of doctrinal direction.
What the historical sources collectively miss: the modern records-tampering context, any treatment of mutilation in the context of constitutional protections (e.g., mutilation of currency), and the administrative law dimension of altering or defacing official government records.
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Jurisdictional Note
Mutilation as a criminal offense has been substantially redefined by statute across jurisdictions. Some states retain mayhem statutes that incorporate mutilation language; others have replaced both with modern assault and battery provisions. The document-mutilation context is similarly statute-driven, with variation in what constitutes a "public record" subject to criminal protection against mutilation or defacement.
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Encyclopedia Cross-Reference
See Law Mind Encyclopedia: Mayhem; Wills — Revocation and Cancellation; Tampering with Records.
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