Comment by jon-wood

Part of why CCTV in the UK is ubiquitous and yet hasn’t so far resulted in what many people describe as a surveillance state is that the cameras are all operated by different people. To hoover up data an agency needs to go ask the owner of every shop along a road for the video, while hoping they’ve not recorded over the tape yet.

That falls apart (and is falling apart) when the cameras are all operated by the same company. Now an agency can just go to that company and request video for an entire town in one go. There’s probably a self-service portal for this because the operator isn’t even based in that town, so has no skin in the game, no need to work out whether they agree this is something the video is needed for.