Officials are looking for a parolee at large who is described as a violent sex offender.
The El Dorado County District Attorney's Office said Jaime Lynn Olson, 36, violated her parole and failed to register as a sex offender.
Olson was imprisoned for kidnapping, sexual battery, multiple counts of forced oral copulation and false imprisonment. District attorney investigator Dave Stevenson said it was "a very violent crime" and Olson was with a male suspect at the time.
Olson should be considered dangerous, Stevenson said.
Olson was described as white, 5 feet 9 inches tall, weighing about 160 pounds, and with brown hair and blue eyes. She also goes by the alias Jaime Perez Ruelas.
Stevenson said Olson frequents South Lake Tahoe, where the crime was, the west slope of El Dorado County, and was possibly living in the Sacramento area.