Do they work even for muggings/knifings?
"I don't really care if it reduces crime, but if it will catch the bugger who has just mugged me, or stolen my car or knifed me, I'd say that the cameras are serving their purpose."
Do they work even for that? UK violent crime continues to rise and UK is one of the most monitored countries.
Only thing I notice is fewer people out on the streets, especially at night.