MiDAS is the Minibus Driver Awareness Scheme, organised by the Community Transport Association U.K. (CTA) which promotes a nationally recognised standard for the assessment and training of minibus drivers.
MiDAS is applicable to any organisation operating or using minibuses. The Health and Safety Executive now regards driving as one of the most dangerous regular activities that most people do. Statistically, working as a driver is almost as dangerous as being a deep sea fisherman or working in a quarry, and more dangerous than working in the construction industry.
Under the Health and Safety at Work etc Act 1974, organisations have a responsibility to provide information, instruction, training and supervision to all their staff, and a responsibility to protect the health, safety and welfare of everyone affected by the organisation. This is further endorsed under the Management of Health and Safety at Work Regulations 1999, which also place a duty on organisations to provide appropriate training to staff. So there is a clear, legal, obligation to ensure your drivers are trained.