Maldon: 40 per cent rise in town crime (From Maldon and Burnham Standard)

Were told there's no link between rising crime & having the street lights turned off, so why does using lighting to combat crime feature so much in advice from the police? I.e. when it comes to keeping your vehicle safe Essex police say- 'Park in safe areas, choose somewhere busy and well lit'.
& on burglary Essex police say-'The most effective lighting is controlled by a dusk to dawn switch that comes on only when it gets dark. It costs very little to run and acts as a deterrent all night'.
& Walking alone Essex police say-
'Try to use well lit busy streets'.
There's loads more examples where lighting is recommended when it comes to reducing & preventing crime, so why do the police not object to the lights going off when they endorse their benefits? Or do they really believe there's no rise in crime when the lights go out?