About DIA

In 1966, Investigators from various California Public Defender offices created the Defense Investigators Association(DIA). Today, the DIA serves Public Defender Investigators as active members and other criminal defense professionals as associate members. The association continues to provide professional training through annual seminars and a fully accredited training academy (DITA). In addition, the association provides networking opportunities for its members

The Association was created to:


The interests of Criminal Defense Investigation.


Training and Certification Opportunities


A network between Criminal Defense Investigators for the exchange of information and ideas.


Jerry Maya

Jerry Maya


Alameda County Public Defender
Office: (510) 272-3804
Elizabeth Aguilar

Elizabeth Aguilar


Los Angeles County Public Defender
Office: (562) 651-2522
Carlos Carrera

Carlos Carrera


Sonoma County Public Defender
Office: (707) 565-3163

Northern Board Members

Ron Weber

Past President
Tulare County Public Defender
Office: (559) 636-4500

Nigel Phillips

San Francisco Public Defender
Office: (415) 553-9619

Danielle Thompson

San Francisco Public Defender
Office: (415) 940-1284

Daniel Malasavanh

Santa Clara County Public Defender
Office: (408) 299-7030

Michael Noffsinger

Santa Clara County Alternate Defender
Office: (408) 299-7216

Jeremy Maurer

Solano County Public Defender
Office: (707) 784-3472

Southern Board Members

Pascual Benitez

Immediate Past President
San Diego County Alternate Public Defender
Office: (619) 446-2962

Leticia Macias

Past President
Los Angeles County Public Defender
Office: (213) 974-2840

Marisa Berg

San Bernardino County Public Defender
Office: (909) 963-8530

Giselle Enriquez

Santa Barbara County Public Defender
Office: (805) 568-3465

Erika Thompson

 Orange County Public Defender
Office: (714) 834-2144

Tony Perez

 Los Angeles County Public Defender
Office: (213) 974-3092

Disclaimer of Endorsement

The Defense Investigators Association of California Websites are distributors of content sometimes supplied by third parties and users. Any opinions, advice, statements, services, offers, or other information or content expressed or made available by third parties, including information providers, users, or others, are those of the respective author(s) or distributor(s) and do not necessarily state or reflect those of the Defense Investigators Association of California.

Reference herein to any specific commercial products, named individuals, process, or service by trade name, trademark, manufacturer, or otherwise, does not constitute or imply its/their endorsement, recommendation, or favoring by the Defense Investigators Association of California, and such reference shall not be used for advertising or product endorsement purposes.

Defense Investigators Association

PO Box 124961 
San Diego, CA 92112

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