Area Specific Laws
From ZoneMinder Wiki
U.S
Hidden cameras - Laws in each State
California Report on Public Video Surveillance
U.K
From the Information Commissioner's Office,
- old advice (2022-02) archive copy
- for businesses and small organisations, 2023-06
- does my business need consent to install CCTV?
- complaining about a home CCTV system, and what the ICO might do
These are not all the CCTV pages, there may be other advice like the now-outdated PDF buried in there somewhere.