I know this is old news but I think still interesting.
A short video on the effects of gun confiscation in Australia.
According to the information in this video:
Armed Robberies up 69%
Murders up 19%
Assults with guns up 28%
Home Invasions up 21%
Gun Control in Australia - Watch and Weep
https://www.youtube.com/watch_popup?v=fGaDAThOHhA