I've been fined in brighton for riding along the (desserted) esplanade on a rainy october afternoon.
I questioned them why this was such a priority, and basically it's what they get the most complaints from from residents. Ironically there have been three drug related murders within 500 yards of my flat in the past 2 years.
Brighton police have been tasked with getting cyclists to obey the rules, which is fair enough, but I do feel that they get priorities wrong while they try to appease the complainers of Brighton.
To be fair I should really put in a complaint about the drug related murders in the area and something might get done!