The best gun control policies would make guns easier to carry, and make civilians better trained at using them (better deterrent). However they would also aim to reduce the traffic to criminal populations (a much more robust gun registration and inspection process and steeper penalties for a known felon posessing a weapon) and perhaps simply to take more weapons out of circulation entirely (high taxation + time). It also strongly suggests the worst possibly policy is the one we have now: where we make it very easy for citizens to buy weapons (ensuring a healthy traffic of weaopns to criminal and psychiatrically distrubed populations) but almost impossible for them to carry weapons in their everyday lives (concealed carry permits).
