Abuse - As enacted, requires the executive director of the commission on aging and disability to establish within the commission a public guardian working group; requires background checks for persons who volunteer in a position that involves providing direct contact with or direct responsibility for a service recipient in facility or service licensed under the Mental Health, Alcohol and Drug Abuse Prevention and/or Treatment, Intellectual and Developmental Disabilities, and Personal Support Services Licensure Law; revises and adds other provisions regarding vulnerable persons. - Amends TCA Title 4; Title 33; Title 34; Title 38; Title 39; Title 45; Title 47; Title 68 and Title 71.