Administration
From 1107 until 1837 the Isle was under the jurisdiction of the Bishop of Ely, who appointed a Chief Justice of Ely and exercised temporal powers within the Liberty of Ely. This temporal jurisdiction originated in a charter granted by King Edgar in 970, and confirmed by Edward the Confessor and Henry I to the abbot of Ely. The latter monarch established Ely as the seat of a bishop in 1107, creating the Isle of Ely a county palatine under the bishop. An act of parliament in 1535/6 ended the palatine status of the Isle, with all justices of the peace to be appointed by letters patent issued under the great seal and warrants to be issued in the king's name. However, the bishop retained exclusive jurisdiction in civil and criminal matters, and was custos rotulorum. A chief bailiff was appointed for life by the bishop, and performed the functions of high sheriff within the liberty, who also headed the government of the city of Ely.
The Liberty of Ely Act 1837 ended the bishop's secular powers in the Isle. The area was declared a division of Cambridgeshire, with the right to appoint justices revested in the crown. Following the 1837 Act the Isle maintained separate Quarter Sessions, and formed its own constabulary.
Under the Local Government Bill of 1888, which proposed the introduction of elected county councils, the Isle was to form part of Cambridgeshire. Following the intervention of the local member of parliament, Charles Selwyn, the Isle of Ely was constituted a separate administrative county in 1889. The county was small in terms of both area and population, and its abolition was proposed by the Local Government Boundary Commission in 1947. The report of the LGBC was not acted upon, and the administrative county survived until 1965. Following the recommendations of the Local Government Commission for England, on 1 April 1965 the bulk of the area was merged to form Cambridgeshire and Isle of Ely, with the Thorney Rural District going to Huntingdon and Peterborough.
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