Experts are calling for an improvement in the safety of school buses after an investigation found more than one in four buses were not safe to travel in.
Safety checks revealed that 140 of the 600 buses looked at by police and inspectors were faulty.
And 36 of those buses were considered so dangerous they were immediately taken off the road.
People are now campaigning for better transport - such as newer buses - to help prevent accidents.
Chief Supt. Geraint Anwyl said: "The Increasing age of the fleet means that it's only a matter of time before something catastrophic happens and there's a serious injury."
Problems found during the inspection include faulty roof supports, bald tyres, holes in the floor, fumes and seats that actually move.