King's Bench indictment files covering the whole of England except London and Middlesex.
After some early gaps, the series is almost complete from 1693.
Besides indictments and their associated process, removed from inferior courts, mainly assizes and quarter sessions, under writs of certiorari, the files also contain informations quo warranto, mainly used to regulate the tenure of local officers, and qui tam, used by informers to initiate prosecutions under penal statutes on behalf of the crown, as well as informations by the master and ex officio. Until about 1750 they also contain coroners' inquisitions, which had been handed in to the assize justices and were forwarded by them to the court, but after that date the practice ceased. The files normally bear the name of the king's coroner and attorney, who came more commonly to be called the master of the Crown Office, in addition to the description and date.
The series includes a stray recorda file for 1689, which bridges the gap between the two parts of that series in KB 145 and KB 16, as well as some stray items from other recorda files.