(CNN) -- An Illinois woman who left her mentally disabled daughter outside a Tennessee bar cannot be charged with a crime, police said Tuesday.
Police in Caryville, Tennessee, said the daughter is 19 and not assigned to a legal guardian.
"As terrible as it is, unfortunately there is nothing we can do," Assistant Police Chief Stephanie Smith said. "There is no doubt we need a law for mental health rights, but pending this investigation, we just don't know what else to do.