CCTV cameras that tell people off for committing anti-social behaviour have gone live in Greater Manchester.
There are around 4.2 million security cameras in Britain
The "talking" cameras in Salford come complete with speakers to bark orders at litter louts or vandals.
The speakers have been rigged to 11 CCTV cameras along Liverpool Road, and officers in the control room can flick a switch and speak to offenders.
Critics of the scheme complain of "big brother", but the authorities say it will make a real difference.
Salford has been granted £25,000 for the scheme which will also be rolled out to other hotspots in Brookhouse, Ordsall and Winton later this year.
The talking CCTV scheme is part of a wider national campaign - through the government's Respect Agenda - to promote good behaviour and challenge bad behaviour.
It is hoped the camera will shame troublemakers into better behaviour.
Ch Supt Kevin Mulligan, divisional commander for Salford, said: "The technology will enhance our ability to tackle all kinds of anti-social behaviour, by reminding people that we are actively monitoring their actions."
Councillor David Lancaster, lead member for community safety at Salford City Council, said: "We are confident this Talking CCTV will act as a wake-up call for those who blight our communities."
Salford is the first area in Greater Manchester to get the talking cameras.
Blackpool in Lancashire already has the talking cameras and Wirral in Merseyside is also awaiting their arrival.