The newly sworn-in sheriff of Travis County has her roots in Llano County. Sally Hernandez was sworn in as sheriff on Jan. 4 in Austin. She is a graduate of Llano High School who got her start in law enforcement as a part-time night dispatcher in Llano County. She worked at night so she could take care for her special needs child during the day. She moved to Austin in 1988, where she worked as a deputy for the Precinct 3 Travis County Constable.