My sister was involved in an accident with an uninsured motorist. My sister has the appropriate insurance coverage, but the other driver has no insurance. There were multiple injuries, and my sister was incoherent during the police reports and could not remember details of how the accident happened (she suffered a head injury). The other driver blamed everything on her, so she was cited and declared "at fault". Can this other driver now sue my sister for bodily injury or any other damages related to the accident? Thank you!