Middlesex Quarter Sessions of the Peace

The origins of the Justices of the Peace lie in the temporary appointments of 'conservators' or 'keepers' of the peace made at various times of unrest between the late twelfth century and the fourteenth century. In 1361 the 'Custodis Pacis' were merged with the Justices of Labourers, and given the title Justices of the Peace and a commission (see MJP). The Commission (of the Peace) gave them the power to try offences in their courts of Quarter Sessions, appointed them to conserve the peace within a stated area, and to enquire on the oaths of "good and lawfull men" into "all manner of poisonings, enchantments, forestallings, disturbances, abuses of weights and measures" and many other things, and to "chastise and punish" anyone who had offended against laws made in order to keep the peace.

During the sixteenth century the work of the Quarter Sessions and the justices was extended to include administrative functions for the counties. These were wide ranging and included maintenance of structures such as bridges, gaols and asylums; regulating weights, measures, prices and wages, and, probably one of their biggest tasks, enforcing the Poor Law. The bulk of the administrative work was carried out on one specific day during the court's sitting known as the County Day (see MJ/O, MJ/SP and MA). By the beginning of the nineteenth century, it was clear that the Quarter Session's structure was unable to cope with the administrative demands on it, and it lost a lot of functions to bodies set up specifically to deal with particular areas - the most important of these was the Poor Law, reformed in 1834. By the end of the century, when the Local Government Act of 1889 established county councils, the sessions had lost all their administrative functions. The judicial role of the Quarter Sessions continued until 1971, when with the Assize courts they were replaced by the Crown Courts.