Stop light cameras do not record contiounsly. And cities often have no access to them as they are run by third party companies that get a cut of the tickets the

Stop light cameras do not record contiounsly. And cities often have no access to them as they are run by third party companies that get a cut of the tickets they issue on the cities behalf (complete with city paying them if they don't get enough tickets to write) They only need the relevant clip for the ticket.