sentences:  COCA's courses are Drug and Alcohol National Occupational Standards (DANOS) compliant.COCA has trained staff from small and large voluntary agencies including CRi, Cranstoun Drug Services, Turning Point and Addaction as well as statutory organisations such as National Offender Management Service in England and the Prison Service in Scotland, Drug Action Teams, the National Probation Service and the police service.COCA's courses have been delivered to GP's and are PGEA approved by the Royal College of General Practitioners.