Not being funny but I don’t think the relative level of anti-social behaviour that happens late at night is directly correlated to the overall illumination levels in any particular area.
There are regularly parts of town where the street lights are completely switched off for whatever reason – do muggers, yobs and youths look out of their window and rejoice for total darkness cover when they see lower levels of lighting come out to cause trouble?
There are areas in the county where there is no street lighting whatsoever – who is hiding in those shadows at night time? What mischief are they up to.
I am of the opinion that in this day and age’s emboldened youth/criminal element you’d get an increase in crime if they floodlit everywhere as they could take delight in seeing their misdeeds.
The complete lack of police officers on the streets and slow response time means that lesser crimes like anti-social behaviour almost completely go unpunished. Do PCSOs even come out after dark?