Background Back to contents 27 Nearly two decades after this classification by Norris et al., we are firmly at stage four. Currently, India’s capital New Delhi holds the record for having the most CCTV cameras in the world, with 1,826.6 cameras per square mile, followed by London (1,138.5 cameras per square mile), Chennai (609.9 cameras per square mile), and Shenzen (520 cameras per square mile).42 NEW DELHI LONDON 1,826.6 1,138.5 cameras per square mile cameras per square mile CHENNAI SHENZEN 609.9 520 cameras per square mile cameras per square mile