Ms. Castorena is a Deputy District Attorney for Los Angeles County currently assigned to the Hardcore Gang Division Injunction Unit. Prior to that she was the Assistant Deputy in Charge for the West Covina Office, Filing Deputy for the Pomona Office, a member of the GRASP Unit and assigned to the Criminal Courts Building for the Hardcore Gang Division. Deputy DA Castorena also has worked in the Hardcore Gang Division in Pomona, Bellflower, Pasadena and Norwalk as well as Eastlake Juvenile. During her almost 10 years in the Hardcore Gang Division, she tried approximately 30 cases, which were primarily murders. She also secured three civil gang injunctions and assisted with several others. Ms. Castorena is considered the DA's office civil gang injunction expert and secured the first civil gang injunction for the District Attorney's Office in 1994. She authored the California District Attorney's Association "Civil Gang Injunction Pleadings Manual" published in 2000.
Ms. Castorena is a graduate of Georgetown University Law Center (June 1990) and graduated from the University of Virginia in June 1986. She has lectured on gang prosecution, civil gang injunctions, Proposition 21, and community prosecution programs to a variety of audiences including at a minimum the National Institute of Justice, Community Prosecution Workshop (1995 - Washington DC), California Governor's Committee (1995 - Sacramento), The California District Attorney's Association (multiple presentations for gang prosecution training and the summer conference in 1997), California Gang Investigator's Association (1998, 2000), Regional Community Policing Institute sponsored by LASD (4 sessions in 1998),Salt Lake County (Utah) Sheriff's Office Seminar (1997), League of California Cities Spring Conference (1996), California Contract Cities Association (1998), Los Angeles Department of Housing and Urban Development (1997), The LA County Sheriff's Department (LASD) Interagency Gang Task Force (1995), LASD Gang Summit (1997), LASD Crime Prevention/Community Relations Division (1996), LASD High Impact Community Oriented Policing Project (1997), California Department of Justice, Bureau of Investigation (2000), Cal State Fullerton, Department of Criminal Justice (1996 and 1997), Loyola Law School (1997), The Multi Agency Graffiti Intervention Committee (MAGIC) (1997), and many LA county cities, commissions and clubs.