CCTV cameras, of which London is completely covered by last I heard, over two decades back, are notorious for misidentifying people with facial recognition before this llm bs even came out.

Especially minorities, there was a dude in detroit, black dude, got falsley flagged by the system for a murder, they arrested him, ignoring his ironclad alibi, and tried to make the charges stick for some time, knowing he was innocent. That was a number of years back, but not a one off at all.