They don't provide a deterrent anymore because we forget they are there. They don't work as a deterrent because the chances of being caught on CCTV are slim. B

They don't provide a deterrent anymore because we forget they are there. They don't work as a deterrent because the chances of being caught on CCTV are slim. But I'm not sure that this matters. I see CCTV more as evidence gathering rather than crime prevention.