Gwynedd Constabulary was created in 1950.
Gwynedd Constabulary ended in 1967.
Monmouthshire Constabulary was created in 1857.
Glamorgan Constabulary was created in 1841.
Herefordshire Constabulary was created in 1857.
Suffolk Constabulary was created in 1967.
Northern Constabulary was created in 1975.
Hertfordshire Constabulary was created in 1841.
Oxfordshire Constabulary was created in 1857.
Buckinghamshire Constabulary was created in 1857.
Cheshire Constabulary was created in 1857.
Leicestershire Constabulary was created in 1839.
Durham Constabulary was created in 1839.