Ranulf de Glanvill was Chief Justiciar of England during the reign of King Henry II (1154–89) and was the probable author of Tractatus de legibus et consuetudinibus regni Anglie, the earliest treatise on the laws of England.

The Sheriff is the oldest secular office under the Crown. Formerly the Sheriff was the principal law enforcement officer in the county but over the centuries most of the responsibilities associated with the post have been transferred elsewhere or are now defunct, so that its functions are now largely ceremonial.