Diana was born in Mexico City and immigrated to the United States when she was nine years old.
Diana became interested in law enforcement as a teen with the Reedley Police Department Explorer program in 1997. She eventually became a Reserve CSO Jailer and then a dispatcher for the Reedley and Fresno Police Departments before becoming a Fresno Police Department Cadet in June 2003. She was promoted to Officer in November 2003.
As an officer, Diana has worked Patrol, District Crime Suppression Team, District Investigations-as a Vehicle Burglary Detective, undercover in the Street Narcotics Enforcement Team, Violent Crime Impact Team Surveillance Team, Graffiti Detective, Multi-Agency Gang Enforcement Consortium (MAGEC) Investigations Unit-Assigned to the Bulldog Criminal Street Gang, and the Sexual Assault Unit. In 2015, Diana promoted to Police Sergeant and has supervised officers on Patrol, on the Violent Crime Impact Team, and in the Central Policing District Investigations/Problem-Oriented Policing/School Neighborhood Resource Officers. Diana has also worked as a sergeant in the Internal Affairs Bureau.
Diana is currently assigned to the Office of the Chief, in the Office of Media and Community Engagement as an Assistant Public Information Officer. She holds a Bachelor’s of Science from Union Institute & University in Criminal Justice Management, and a Master of Science in Law Enforcement and Public Safety Leadership from the University of San Diego.