Cornwall County Constabulary establishment of 500 and an actual strength of 446. On 1 April 1967 it amalgamated with Devon and Exeter Police and Plymouth City Police to form Devon and Cornwall Constabulary. Cornwall County Constabulary Cornwall County Constabulary was the Home Office police force for the county of Cornwall, England, until 1967. The force was formed in 1857. It absorbed Bodmin Borough Police in 1866, Liskeard Borough Police in 1877, Launceston Borough Police in 1883, Falmouth Borough Police, Helston Borough Police, Penryn Borough Police and St Ives Borough Police in 1889, Truro City Police in 1921, and Penzance Borough Police and the
Cornwall Cornwall Cornwall (; ) is a county in South West England in the United Kingdom. The county is bordered to the north and west by the Celtic Sea, to the south by the English Channel, and to the east by the county of Devon, over the River Tamar which forms most of the border between them. Cornwall forms the westernmost part of the South West Peninsula of the island of Great Britain. The furthest southwestern point of the island is Land's End; the southernmost point is Lizard Point. Cornwall has a population of and covers an area of . The