A "locked down' facility means that it is a facility that does not allow patient to leave unintentionally or without a chaperone. These types of facilities are typically for persons suffering from Alzheimer's disease or Dementia. Part of the disease entails wandering or walking away and getting lost. This type of facility allows patients to wander within the security of the facility. In addition, some of these facilities have secured outdoor environments. This ensures that your loved one does not leave the facility unintentionally or without a chaperone.