Records enrolled or filed with the Clerk of the Westminster Quarter Sessions of the Peace, 1552-1885. The records classified as WR/A are concerned with the registration of foreigners; WR/B are records produced by Building Surveyors; WR/F are returns of those eligible to serve on juries; WR/L/P covers the licensing of printing presses; WR/LV relate to Licensed Victuallers; WR/ML are concerned with Militia and Lieutenancy; WR/O are Oaths of Office; WR/P are papers concerning Parliamentary Elections; WR/PLT Land Tax; WR/R contains the records produced from the control and recording of all non-conformists; WR/S contains records concerned with Societies; and WR/U records deposited with the court concerning Public Undertakings.
Note on the Quarter Sessions records: Although Westminster has fewer surviving records than Middlesex, the City's sessions would have produced similar records to those of the County, but they would have been smaller in quantity, and have included less administrative material. Also, as with all Quarter Sessions records, "seeing that the Custos Rotulorum was a private gentleman or nobleman and the Clerk of the Peace an attorney with a private practice it is likely that many county records were (if not lost or destroyed) handed down to their families or their professional successors" and many may still remain to be found in private hands (Emmison and Gray, County Records, 1987). Those records that have survived are often difficult to read or understand because of the handwriting, use of Latin (until 1733), or legal jargon and abbreviations; although standardised legal formats were used and printed pro formas introduced by the nineteenth century.
For the Middlesex and Westminster records there may also be confusion over the records' arrangement resulting from the attempts at classification by previous generations of archivists which have left many records split up into unnatural groupings. Originally they would not have been sorted into any cohesive arrangement. These were records that were "kept for administrative convenience rather than as sources for future generations" (G. Jones, Quarter Sessions records in the Leicestershire Record Office).
Because of this overlapping between many classes of record, any study of the Westminster records should include consultation of those for Middlesex. There was in any case a lot of co-operation between the two courts during the period covered by the records. Judicial (Gaol Delivery Sessions for example) and administrative functions were shared, as were court personnel (including justices). Westminster prisoners could elect to be tried at the Middlesex sessions, as these were held more frequently than their own.
The sessions records are a very useful source for family history, studying trends in law and order, and the life of the City and its inhabitants over a relatively long period of time. The capital was an area with high levels of crime, the natural place for riot and conspiracy, and attracted a wide variety of people from the whole country and abroad. The main record of proceedings at the sessions will be found in the sessions rolls (MJ/SR and the uncatalogued WJ/SR - index in WJ/CB); the (partially uncatalogued) sessions books (WJ/SB, MJ/SB); and the (partially uncatalogued) sessions papers (WJ/SP, MJ/SP). City administrative work is in the records of the County Day sessions (WJ/O), and for one particular type, in the records of the street surveyors (WJ/SS). Records of judicial procedure are in the records of court fines (WJ/E), writs to summon juries (WJ/W), and the trial process (WJ/Y); Lists of prisoners made at various times during the trial process are in WJ/CC and WJ/CP.