20-year-old Rosalba Moran of Oxnard was arrested Dec. 21 after a lengthy investigation in which detectives used DNA samples from farm workers to track down a relative of the baby’s mother.
The investigation began May 21, 2012 when the newborn’s body was discovered at La Esparanza Farms.
Detectives collected more than 100 DNA samples from field workers and interviewed potential witnesses, officials said.
Using the DNA, forensic scientists identified one of those sampled as a close relative of the baby’s mother.
That led investigators to Moran, whose DNA was collected under a search warrant while she was in jail on the documents charges, authorities said.
Moran is due back in court May 8th.