Derbyshire Constabulary was created in 1967.
South Yorkshire Police was created on 1 April 1974, following the reorganization of police forces in England and Wales under the Local Government Act 1972. It was formed by merging the Sheffield and Rotherham Constabulary, Doncaster Borough Police, and parts of the West Yorkshire Constabulary and the Derbyshire Constabulary.
Leicestershire Constabulary was created in 1839.
Monmouthshire Constabulary was created in 1857.
Cambridgeshire Constabulary was created in 1851.
Gloucestershire Constabulary was created in 1839.
Herefordshire Constabulary was created in 1857.
Suffolk Constabulary was created in 1967.
Oxfordshire Constabulary was created in 1857.
Glamorgan Constabulary was created in 1841.
Durham Constabulary was created in 1839.
Hampshire Constabulary was created in 1839.
Cumbria Constabulary was created in 1856.