Flock, a private security tech company, has deployed 130,000 AI licence‑plate readers nationwide, primarily to aid law enforcement. The rapid spread has triggered concerns over mass surveillance, data security and the potential for misuse. Protesters and civil‑rights organisations argue that the technology enables unwarranted monitoring of everyday movements. The BBC Verify team examines Flock’s system and the growing backlash, detailing legal safeguards and the community response.