>CCTVs allow the arrest rates of 'the five violent crimes' (Murder, robbery, rape, theft, violence) go up from 79% in 2011 to 100% in 2016. I find this very suspicious. Do you have any statistics confirming it? Also worth considering that in SK there are insanely high conviction rates, and probably for similar reason as in Japan (https://www.bbc.com/news/magazine-20810572).