This handbook was developed to assist families in understanding major unusual incidents and the various activities and responsibilities that occur when one is reported. The role of the family is not discussed in the MUI Rule, as families are not required in rule to report incidents. The Department, however, recognizes the valuable role families play and the importance for families to understand why the MUI system exists, how they might be involved from time to time and the role of providers, county boards and the Department in protecting individuals with disabilities.