England - Lincolnshire Police arm patch

Lincolnshire Police is the territorial police force covering the non-metropolitan county of Lincolnshire in the East Midlands of England. Despite the name, the force's area does not include North East Lincolnshire and North Lincolnshire, which are covered by Humberside Police instead.
In terms of geographic area the force is one of the largest in the United Kingdom covering 2,284 square miles.
Lincolnshire Constabulary was formed in 1856 under the County and Borough Police Act 1856. Several other borough police forces used to exist in the county, but these were eventually combined with the Lincolnshire force. Under the Police Act 1946, Boston Borough Police and Grantham Borough Police were merged, while Lincoln City Police and Grimsby Borough Police were absorbed under the Police Act 1964. Lincolnshire lost part of its area to the new Humberside Police in 1974.