School targeted by anti-vaccine protesters after misinterpreted 'lockdown' drill The school sent a letter to parents about its plans for a 'critical incident procedure', which included locking down the school Updated Ellis Guilford School, in Bar Lane, Old Basford (Image: Joseph Raynor) Never miss another Nottinghamshire story by signing up to our free email updatesInvalid EmailSomething went wrong, please try again later. Subscribe When you subscribe we will use the information you provide to send you these newsletters. Your information will be used in accordance with ourPrivacy Notice. Thank you for subscribingWe have more newslettersShow meSee ourprivacy notice A school has hit out at anti-vaccination protesters after an emergency planning operation was misinterpreted as an attempt to 'lock children in school and vaccinate them'.