History of CMPG
The Central Motorway Police Group started
life in 1990 when West Midlands Police and West Mercia
Constabulary formed a partnership in order to effectively
provide a dedicated policing unit for the M6, M5 and M42
motorways surrounding Birmingham, in the West Midlands
and North Worcestershire. This consisted of some 100 miles
of the busiest motorway link in Europe and was colloquially
known as "The Birmingham Box".
In January 2001 Staffordshire Police joined
the partnership, adding another 96 miles of the M6 and
the M54 motorways within the county, to the unit's patrol
In April 2001 Warwickshire police entered
the group. At the same time West Mercia Constabulary increased
its input into the partnership. These developments brought
the rest of the M5 in Worcestershire, the M50, the M54,
the remainder of the M42, the M6, the M40 and the A45/46
corridor in Warwickshire under the group's responsibility.
These additions increased the area covered to 630 miles
In June 2007, Warwickshire left the Central Motorway Policing Group.
The area consists of a mix of heavily congested
urban and elevated sections within the West Midlands conurbation,
together with rural stretches within the Staffordshire and West Mercia force areas, where speeds
tend to be far higher. The infrastructure of the surrounding
cities, towns and countryside adds to the variety of policing
problems that can be encountered.