Definition
A writ of habeas corpus commanding that a prisoner held in one jurisdiction be brought before a court in another jurisdiction where criminal charges are pending against that prisoner. The writ orders the custodian to produce the prisoner so that prosecution may proceed in the proper forum — the jurisdiction where the alleged offense was committed. It does not challenge the legality of the underlying detention; its purpose is purely logistical: to move a person already in custody to the place where trial is to occur.
Why It Matters in Research
Researchers encounter this writ most often in historical criminal procedure materials and early federal-state custody disputes. Several navigational points deserve attention.
First, the phrase "ad prosequendum" is the critical differentiator within the habeas corpus family. The broader term HABEAS CORPUS encompasses multiple distinct writs, each identified by its Latin tag. Collapsing them into a single search will return an unmanageable volume of unrelated material. When searching historical digests, reporters, or pleading books, search for the full phrase or the shorthand "ad prosequendum" specifically.
Second, the writ became particularly significant in early American federal practice when federal and state courts competed over physical custody of defendants. A federal court could issue habeas corpus ad prosequendum to obtain a state prisoner for federal trial, and vice versa — a tension that generated substantial nineteenth-century litigation. Researchers working in federal criminal history should trace this writ as a mechanism of inter-sovereign custody transfer, distinct from extradition.
Third, both Rapalje & Lawrence and Bouvier note (accurately) that the writ was practically obsolete by the late nineteenth century. Modern federal practice accomplishes the same transfer through statutory writs and detainer agreements rather than common law habeas forms. Researchers working in contemporary materials will not encounter this writ in active use, but it appears frequently in historical pleading records, circuit court files, and early treatises on criminal procedure.
Fourth, the source material supplied for this entry carries an anomaly worth flagging: the Rapalje & Lawrence text as provided reads "QUENDUM" rather than the full term, and the definition describes the writ as one "to prosecute him in the proper jurisdiction." This appears to be a truncated or corrupted transcription of the standard entry for habeas corpus ad prosequendum. The underlying substance matches Bouvier exactly. Researchers consulting these dictionaries in original form should verify the full headword.
Historical Dictionary Support
Bouvier and Rapalje & Lawrence are in agreement on substance: both define the writ as a mechanism for removing a prisoner to the jurisdiction where the offense was committed in order to permit prosecution there. Bouvier cites Blackstone's Commentaries (3 Bl. Com. 130) as the foundational authority, placing the writ firmly within the classical English habeas corpus taxonomy. Rapalje cites a cluster of American and English reporters indicating that the writ had active common law usage in both systems before falling into disuse.
Neither dictionary addresses the federal-state custody dimension that became prominent in American practice — a gap that reflects the period focus of these works and the relative novelty of federal criminal jurisdiction at the time of their compilation. Researchers should supplement these entries with Blackstone's treatment and with nineteenth-century American treatises on criminal pleading (such as Wharton's Criminal Pleading and Practice) for fuller context.
Neither source provides a satisfying account of why the writ became obsolete. The practical answer — that statutory mechanisms and informal inter-governmental arrangements displaced it — requires sources beyond these dictionaries.
Jurisdictional Note
The writ originated in English common law and was received into American practice in both federal and state courts. Its obsolescence is general across American jurisdictions, but the timing and statutory replacements vary. Federal practice is now governed by statute and the Interstate Agreement on Detainers for inter-sovereign transfers; state-to-state practice similarly relies on statutory frameworks rather than common law writs.