Less, much less, but not zero. You'll always have the odd person who ends up a problem even under optimal circumstances. The range of trait expression in humans is very broad, and there are a lot of humans. You can't run away from that, but you can be compassionate about it. Insisting that your socialist utopia will simply render all humans happy and harmless, and as such there will be no need for forceful law enforcement is obviously wrong and harmful to your movement.
Less, much less, but not zero. You'll always have the odd person who ends up a problem even under optimal circumstances. The range of trait expression in humans is very broad, and there are a lot of humans. You can't run away from that, but you can be compassionate about it. Insisting that your socialist utopia will simply render all humans happy and harmless, and as such there will be no need for forceful law enforcement is obviously wrong and harmful to your movement.