Better Streets & Camera Enforcement I The Ranty Highwayman
The enforcement of traffic contraventions has evolved over the years. Once the preserve of traffic police, it has gradually moved over to local authorities, although it’s still not universally applicable because of government inertia on moving contravention enforcement being rolled out universally.
As I have mentioned in other posts, the basic UK approach to road rules is that you can do what you like unless there is a legal restriction which is either at the national level (or devolved nations level) such as defining the national speed limits or the local level with traffic orders.