Surveillance cameras in Middlesbrough, England have been outfitted with speakers so that operators can yell at citizens who they see misbehaving. Other similar "talking" systems have been installed elsewhere. From the BBC News:
"For example, if an operative now sees someone dropping litter, they can tell them to pick it up, or if they see an incident starting to get out of hand, they can give advice that will hopefully nip it in the bud," (said Barry Coppinger, Middlesbrough Council's executive member for community safety.)
"I think that it will give people extra confidence as they go about their business and re-enforce the message that Middlesbrough is a place that is constantly thinking about community safety."
