big brother is shouting at you

from daily mail: Big Brother is not only watching you - now he's barking orders too. Britain's first 'talking' CCTV cameras have arrived, publicly berating bad behaviour and shaming offenders into acting more responsibly.

The system allows control room operators who spot any anti-social acts - from dropping litter to late-night brawls - to send out a verbal warning:
'We are watching you'.