> For example the Central line in London doesn't have CCTV (unlike most of the other lines) and it has the most assaults. So crime just shifted there. If you i

> For example the Central line in London doesn't have CCTV (unlike most of the other lines) and it has the most assaults. So crime just shifted there. If you install CCTV there it shifts somewhere else. That doesn't mean you're decreasing crime. This is a report by the UK home office which finds that CCTV has little to none impact on overall crime rates: https://techfak.uni-bielefeld.de/~iluetkeb/2006/surveillance/paper/social_effect/CCTV_report.pdf https://techfak.uni-bielefeld.de/~iluetkeb/2006/surveillance...