Natividad Reyes, 34, is from the City of Mixtipec in the state of Oaxaca. She speaks a dialect called Zapateco.
Reyes was arrested last Tuesday. She was under investigation for nearly a month after four-month-old Christopher Rios was found with a traumatic brain injury.
Christopher's mother says she left her son with Reyes while she went to work. She says when she came home, Christopher was unresponsive.
Reyes is expected back in court on August 30th.