Curious. So, it's either you have 0 crime/100% crime supression. Or you have tons of crime, don't even try to fight it and have 'deal with crime lords' instead. The system is quite binary in that sense, no middle ground at all. First case is the base line for almost any empire, or when you want to trow out crime branch from the planet. The second is when you consider the loss of building slots for police stations not worth it and just goes 'whatevs'. Weird that crime lords doesn't seems to have any severe penalties. At the very least it's protecting you from actually harmful crime events like minus to trade value - this event, firing in your capital, could have a sizable effect to your economy.