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 County, Province of New York Cornwall County, Province of New York Cornwall County was a county of the former Province of New York, established on September 5, 1665 from of land that had been granted to the Duke of York in modern Maine. As established, the grant ran all the way from the St. Lawrence River to the Atlantic Ocean, between the Kennebec and St. Croix rivers, and produced what today is most of Aroostook, Piscataquis, Washington, Hancock, Penobscot, Waldo, Knox, Lincoln, Kennebec, Somerset, and Sagadahoc Counties. On October 7, 1673, Massachusetts, relying on a new survey of its northern border, and responding to the