The police have surprisingly little constantly available CCTV. Police and national government control a minuscule fraction of the CCTV in the UK. (Local government a bit more, but it’s town centre anti-nuisance stuff —- pickpockets —- and a few secure buildings, and the police do not have routine access to it). There isn’t the money, the intent or the legal framework to so what you’re suggesting, and nor, I would say, do we “love it”.