Vaux I sent you a PM about an actual build for the city and while I'll wait for your response to that, I do have a suggestion
If you can manage a server capable of a somewhat healthy brickcount, you could have functional light fixtures and traffic lights. Now, basic knowledge says running a red light is bad, so maybe that could be implemented? Pre-made bricks that, if driven through while a light brick is red, the driver is given some form of ticket. Possibly speed limits?
Speaking in terms of the build I have, traffic lights can be overly complicated, without VCE it takes a lot of relays and 6 named bricks, but with VCE you can make specialized relays to remove the named brick requirements. I can see some cases where models could replace the brick-made street lights, but I'm not 100% sure how that would function. I'll leave it up to the message I sent you in terms of the build, but I thought this would be the best place for my suggestion.
Edit:
It's been pointed out that if 3+ people OR a cop sees a crime commited, the person is wanted. What if it's not seen, but extremely obvious? Festival in the middle of town, 12 people in a big dance area, suddenly car bomb, but nobody saw who blew up the car. Would that kind of attack not get a stronger police presence aka SWAT teams and FBI? Mass killings usually get really high priority.
Also, life in prison? Maybe a possibility for the extreme crimes aka mega kill sprees, which means you either rot in jail forever OR you reset?
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