Definition
To impanel a jury is to formally constitute a jury for service, encompassing the process by which jurors are selected, sworn, and seated for a particular proceeding. The term captures two related but distinct acts depending on context:
1. (English practice) The act of the sheriff in entering the names of summoned jurors onto a panel — a parchment schedule returned to the court alongside the writ of venire — thereby recording who has been called for jury duty at a given term.
2. (American practice) The broader process by which a court's clerk draws and records jurors for a specific trial, including the voir dire examination and final seating of jurors, culminating in a sworn jury ready to hear the case.
Modern usage in American courts encompasses the entire jury-selection sequence: drawing names from the jury pool, conducting voir dire, ruling on challenges for cause and peremptory challenges, and swearing in the final panel. A jury is considered impaneled — and jeopardy typically attaches in criminal cases — once the jury is sworn.
Common Language
Modern common usage (Wiktionary): To enrol jurors, e.g., from a jury pool; to register the names of jurors on a panel or official list.
Historical common usage (Webster's 1913): To enter in a list, or on a piece of parchment, called a panel; to form or enroll, as a list of jurors in a court of justice.
The common definitions track the legal meaning closely, but they capture only the clerical recording aspect — writing names on a list. In legal practice, impaneling also carries procedural and constitutional weight: it marks the threshold event triggering double jeopardy protections in criminal cases and formally constitutes the tribunal. The act is not merely administrative but legally operative.
Common Confusion
IMPANEL vs. EMPANEL: The two spellings are variants of the same term, not distinct legal concepts. Historical English practice and older American sources favor impanel; empanel appears in some American jurisdictions and is used interchangeably in case law and statutes. Rapalje & Lawrence cross-references the two without distinction. Researchers should treat them as equivalent and search both spellings when working in historical corpora.
IMPANEL vs. VENIRE: The venire (or venire facias) is the writ commanding the sheriff to summon prospective jurors. Impaneling occurs after the venire has been executed — it is the next stage, in which the pool produced by the venire is organized into a working panel and ultimately a seated jury.
Why It Matters in Research
The English-to-American shift in meaning is the central research trap. In English sources and early American materials, impanel refers specifically to the sheriff's clerical act of recording names on the parchment panel returned with the venire. In later American practice, the term expands to cover the full voir dire and seating process. A researcher reading an 18th- or early 19th-century case must not assume that "impaneled" signals a completed, sworn jury — it may mean only that names appeared on the returned panel.
The moment of impaneling carries direct constitutional consequence in criminal cases. Because jeopardy attaches when the jury is sworn (in jury trials), identifying the precise legal moment of impaneling in any given jurisdiction and era is necessary for double jeopardy analysis. Historical sources are inconsistent on whether impaneling occurs at the recording of names, the swearing of the jury, or somewhere in between.
Corpus researchers should also note that grand jury impaneling follows different procedural rules than petit jury impaneling. Sources that discuss impaneling without specifying the jury type may conflate the two. Grand jury panels have historically been summoned and impaneled under distinct statutory frameworks, with longer terms and no voir dire in the conventional sense.
Spelling variation complicates full-text searches across the Law Mind corpus. Run searches for both impanel and empanel, as well as the nominalized forms impaneling/impanelling and empaneling/empanelling. The doubled-l spelling reflects older British orthographic convention and appears more frequently in 19th-century American sources than modern readers might expect.
Historical Dictionary Support
The six source dictionaries show strong agreement on the English-practice definition — the sheriff's entry of juror names on a parchment panel — and consistent recognition that American practice broadened the term. Black's (both editions), Burrill, and Bouvier all explicitly note the English/American distinction, a rare degree of editorial consensus across these sources.
Burrill provides the most technically precise English-practice description, citing Stephen's Commentaries and Tidd's Practice to ground the definition in the procedural mechanics of the returned venire. Bouvier adds a useful signal that in American practice the clerk — not the sheriff — performs the comparable function for trial-specific jury selection, reflecting the institutional differences between English and American court administration.
Rapalje & Lawrence is notable for cross-referencing the spelling variant empanel without treating it as a substantively different term, and for citing Connecticut authority for when a jury is considered impaneled. Anderson's redirects entirely to PANEL, offering no independent analysis — researchers consulting Anderson's on this term should follow the cross-reference.
None of the historical dictionaries address the constitutional implications of impaneling (double jeopardy attachment), which developed through case law rather than doctrinal definition and falls outside the scope of definitional works of this period.
Jurisdictional Note
American states vary in precisely when impaneling is deemed complete for purposes of jeopardy attachment. Most follow the federal rule that jeopardy attaches when the jury is sworn, treating impaneling and swearing as the operative moment together. Some older state authorities treated the filing of the panel as sufficient. Federal procedural rules govern impaneling in federal courts through the Federal Rules of Criminal Procedure and Civil Procedure; state analogs vary in detail.
Encyclopedia Cross-Reference
See Law Mind Encyclopedia — Jury Selection
See Law Mind Encyclopedia — Double Jeopardy
See Law Mind Encyclopedia — Grand Jury