With its HQ here in Preston, the modern force has plenty of high-tech resources at its disposal, but it wasn't always like that. Have a look through our archives at what policing in Preston used to look like.
Recruits of the Lancashire Constabulary, being trained at Stanley Grange, Houghton, near Preston, take notes during a staged smash and grab raid, as part of a general intelligence test.
Police recruits being shown how to take a plaster cast of a footprint at the scene of a crime in Hoghton, Preston
Sign up to our daily newsletter
The i newsletter cut through the noise
A policeman speeding along Garstang Road near Preston, Lancashire, on a new motor pedal cycle with a 98cc two-stroke engine.
The Womans Auxiliary Police Corps in Preston working to keep a police car on the road
An ingenious pocket wireless is used by Mounted Police in Lancashire for controlling heavy traffic. It is especially useful on the occasion of Royal Visits, race-meetings, and other big events.
Recruits to the police force during a physical training session at Stanley Grange, Hoghton, near Preston
Radio control boxes are being erected in the Preston and Blackpool districts. This innovation will prove of great value to preventing traffic congestion on the very busy road between Preston and Blackpool.
Three months training is given to police recruits at the Lancashire Constabularys new training school at Hoghton, near Preston. The course includes crime detection, traffic control, first aid and anti-gas work
The Motor Training Centre at Hutton has full-size working models of cars, and a scale model of a roadway which embodies every type of corner and which has been built by the recruits themselves.
Police recruits at Hutton receiving instruction from a model of full transmission of a car
Preston policemen and members of Civil Defence units practising shouting on their own rifle ranges in the old Preston jail
Acting as drivers for police cars is one of the most popular and important jobs for the Womans Auxiliary Police Corps in Preston.
Mrs Russell of the Womans Auxiliary Police Corps in Preston maintains that a police uniform does not mean that the wearer should be drab or dull.