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 Dutch capture of New York in August 1673 as a result of the Third Anglo-Dutch War, claimed of the Duke of York’s territory east of the Kennebec River in present day Maine, including the Pemaquid settlement, and established a new county there. On May 27, 1674, this county was named Devonshire. Cornwall was implicitly reduced to the area north of the Massachusetts claim. Cornwall and Devonshire were lost to the Abnaki Indians in a war in the Autumn of 1675. Cornwall County was recreated on November 1, 1683, conforming to the original grant, still part of New York. Cornwall continued