Definition
An inquisitor is an officer empowered by law to conduct formal inquiries or inquests — that is, to examine facts and return findings on matters of public or legal concern. In English common law usage, the term designated officers such as sheriffs and coroners acting in their inquisitorial capacity, particularly when presiding over proceedings to determine facts bearing on the rights of the Crown or the public. A coroner conducting a super visum corporis (view of the body) is the classic example: the coroner as inquisitor summons a jury, examines witnesses, and returns a formal verdict. The term does not describe a judicial officer in the adversarial sense but rather an official whose function is investigative and fact-finding — one who inquires by authority of law rather than adjudicates between parties.
Common Language
Modern common usage (Wiktionary): A person who inquires, especially searchingly or ruthlessly; an official of the ecclesiastical court of the Inquisition.
Historical common usage (Webster's 1913): An inquisitive person; one fond of asking questions. One whose official duty it is to examine and inquire, as coroners, sheriffs, etc. A member of the Court of Inquisition.
The common meaning of inquisitor is dominated, for most modern readers, by the Catholic Church's Court of Inquisition — a body historically associated with persecution, coercion, and religious prosecution. The legal meaning is far narrower and procedurally neutral: it refers simply to any officer whose authority includes the power to formally inquire and return findings. A researcher who imports the ecclesiastical connotation into a common-law context will misread the term. Conversely, the Webster's 1913 entry helpfully preserves both senses, signaling that the procedural meaning was live in legal usage through the nineteenth century.
Common Confusion
Inquisitor is sometimes conflated with judge or magistrate. The distinction matters: an inquisitor's function is investigative (gathering facts, returning a verdict or presentment), not adjudicative (resolving a dispute between parties). A coroner-inquisitor does not convict; the inquest jury returns a finding that may or may not trigger further proceedings. Separately, researchers encountering the term in ecclesiastical or Continental legal sources should not assume the English common-law procedural meaning applies — in those contexts, the term retains its association with the Inquisition's coercive tribunal, a structurally different institution.
Why It Matters in Research
The term appears rarely in modern American legal sources and has largely been displaced by the titles of specific offices (coroner, grand jury foreperson, special master). In historical English and early American legal sources, however, it surfaces regularly in discussions of inquests of office, coroner's inquests, and escheats — proceedings in which the Crown's interest in land or property was determined by formal inquiry rather than by lawsuit. Researchers working in these areas need to recognize inquisitor as a functional label, not a permanent office title: the same individual (a sheriff, a coroner) might be called an inquisitor when acting in this specific capacity and not otherwise.
The term is also a navigational marker. When a historical source calls an officer an inquisitor, it signals that the surrounding text concerns inquisitorial procedure — fact-finding by sworn inquiry — rather than adversarial litigation. This distinction affects how findings were recorded, what evidentiary rules applied, and what legal consequences followed. Inquests of office, for example, operated as authenticated Crown proceedings with distinct procedural rules; they are not interchangeable with ordinary civil actions.
Researchers should also be alert to jurisdictional drift: in Louisiana and in sources influenced by civil law, inquisitorial procedure has a broader meaning derived from Continental practice, and the term inquisitor may carry correspondingly broader connotations. Do not assume the narrow English common-law sense applies across all American jurisdictions or across all historical periods.
Historical Dictionary Support
Black's Law Dictionary (both editions) and Bouvier's Law Dictionary are in full agreement on the core definition: an inquisitor is a designation for sheriffs, coroners super visum corporis, and similar officers empowered to inquire. All three sources treat the term as a functional descriptor rather than a formal office title. Bouvier and both Black's editions present the definition in nearly identical language, suggesting that by the time these dictionaries were compiled, the term had settled into a stable, narrow usage in American legal reference literature.
What these sources do not address is the ecclesiastical meaning, nor the broader Continental usage. Webster's 1913 is more candid about the range of meaning, explicitly listing the Court of Inquisition sense alongside the procedural one. The historical legal dictionaries' silence on the ecclesiastical dimension reflects their focus on English and American common law but can mislead a researcher who encounters the term in a source with ecclesiastical or civil law roots.
Black's first edition provides useful context by situating inquisitors within the framework of inquests of office — proceedings used to establish Crown rights in land, particularly under the military tenure system. The note that such inquests were more frequent under the continuance of military tenures than in the later period helps date the term's peak practical significance in English law.
Jurisdictional Note
The term and its associated procedures were most fully developed in English law and carried into early American practice primarily through the coroner's inquest. States that have reformed or abolished the coroner system have correspondingly little use for the term. In civil-law jurisdictions and in sources drawing on French or Spanish legal tradition, inquisitorial carries a broader procedural meaning tied to the judge's active investigative role in litigation, not merely to a specific officer conducting an inquest.
Encyclopedia Cross-Reference
See Law Mind Encyclopedia — Inquest of Office; Coroner