Definition
The nisi prius roll is the procedural record compiled from a superior court's files for use at trial in a nisi prius court. It contains the complete pleading history of a civil action — declaration, plea, replication, rejoinder, and the formal issue joined between the parties — along with the jury process. Once a verdict was obtained at nisi prius, that verdict was entered on the roll, which was then returned to the superior court of record where judgment could be rendered.
The nisi prius roll is not a judgment roll and not a final record of proceedings. It is, in practical terms, a traveling transcript: a working copy extracted from the superior court's record and carried to the circuit or assize court where the case would be heard before a jury.
Common Confusion
The nisi prius roll is closely related to, but distinct from, two other records researchers frequently encounter:
The postea is the endorsement made on the nisi prius roll after verdict, summarizing the trial result. The postea is, in a sense, part of the completed nisi prius roll — but it is a distinct procedural instrument, and sources sometimes treat it separately.
The judgment roll (or plea roll) is the formal record of the superior court on which final judgment was entered. The nisi prius roll fed into but was not identical to the judgment roll. A researcher who treats these as interchangeable will misread the procedural posture of a case.
Why It Matters in Research
This term is almost exclusively historical. Researchers encounter the nisi prius roll in English common law materials, early American state practice records, and treatises on pleading and practice from roughly the seventeenth through the mid-nineteenth centuries. It disappears from active use as consolidated trial courts replaced the bifurcated system of superior courts and nisi prius courts.
Several research traps are worth flagging. First, the roll should not be confused with the final judgment roll or the plea roll. Each served a distinct function in the layered record-keeping of English practice, and conflating them produces errors when tracing the procedural history of a case. Second, in American sources, the term appears unevenly. Some early state courts adopted English nisi prius practice closely; others adapted or abandoned it early. A researcher working in colonial or early republic records should confirm whether the jurisdiction in question recognized a formal nisi prius roll or used a different local variant of the traveling record. Third, Bouvier's entry is incomplete as reproduced — it breaks off mid-sentence after noting that the verdict was obtained and entered on the roll. Researchers relying on Bouvier should be aware that the full entry likely continued with instructions on returning the roll to the superior court and its effect on subsequent proceedings. The truncation is a source artifact, not a reflection of the term's legal content.
For corpus researchers, the nisi prius roll connects directly to research on nisi prius courts, the assize system, and the mechanics of common law pleading. It is most useful as a procedural anchor when tracing how a case moved from commencement in a superior court to jury trial at circuit and back again for judgment.
Historical Dictionary Support
Black's and Bouvier's entries agree on the core function: the nisi prius roll is a transcript drawn from superior court records for use at the trial court. Both emphasize its comprehensive pleading content. Bouvier's entry adds more granular detail on the specific documents included — declaration, plea, replication, rejoinder, issue — making it the more useful source for understanding the roll's contents in practice. Black's definition is tighter but less instructive on substance.
Neither entry addresses the return of the roll after verdict, the relationship between the nisi prius roll and the postea, or the procedural consequences of defects in the roll. Treatise literature on common law pleading and practice — Tidd's Practice and Chitty's works on pleading, for example — offers more complete treatment of how the roll functioned within the full trial cycle, including its relationship to the postea, which was the endorsement recording the jury's verdict and the judge's ruling for transmission back to the superior court.
Jurisdictional Note
Nisi prius practice varied between England and the American states. In England, the nisi prius system was a structured feature of common law procedure through the nineteenth century. In the American states, adoption was uneven, and many jurisdictions modified or replaced English nisi prius practice relatively early. Researchers working in American materials after roughly 1850 should treat references to the nisi prius roll with caution and verify whether the term retained technical meaning in the specific jurisdiction and period under examination.