You know what, I'm sure you're a busy girl so I'll help you out there Chelsea - don't bother. You won't find any because it has never happened. Every place that is large enough to be statistically significant that has implemented "gun control" or bans or confiscation etc. has seen an increase in crime - even gun related crime! These increases aren't just transient either, they have been significant and sustained.
Now Chelsea, I realize this may be hard for your libtard-indoctrinated brain to comprehend but it really is quite simple. There are two driving factors, two irrefutable and un-alterable realities that make this result not only predictable, but inevitable. One, firearms are not just used for criminal activities but also by law-abiding people to defend themselves. Take away law abiding citizens' firearms and they are that much less effective at defending themselves - crime increases. Two, when you take away law abiding citizens' firearms, then only the criminals have firearms. Even the criminals without firearms realize their potential victims no-longer have them. This is a boon for criminals and emboldens them to increased criminal activity.
So Chelsea dear, the cold hard truth is "gun control" has not, does not, and never will make anyone any safer. Well, other than criminals. So, now that you are aware of the facts, any continued advocacy for "gun control" would indicate that you are not interested in public safety, but instead something else - a disarmed populace. Now why would big-government control-freak fascist wannabes want a disarmed populace... I'm going to guess it is not to enhance freedom and liberty...
Bttt