Big Brother-style CCTV cameras are being installed on school buses in Gloucestershire to prevent anti-social behaviour by pupils.
The move follows reports of bullying and unruly behaviour that have led to road traffic accidents.
Four buses in the Stroud Valley network are being fitted with the cameras at a total cost of £27,000.
The scheme will be piloted on Archway, Marling and Stroud High School buses and could be repeated elsewhere.
Andrew Burford, of Gloucestershire County Council, said the cameras were intended to prevent "pockets of trouble" on some routes.
"Other authorities have trialled CCTV with very positive results in combating anti-social behaviour," he said.
"We are piloting the scheme with Ebley Coaches in and around the Stroud Valleys area and we hope to roll it out to routes in the Forest of Dean if it proves a success."