DEFENSE INVESTIGATORS ASSOCIATION

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ABOUT US

In 1966, Investigators from various California Public Defender offices created the Defense Investigators Association (DIA).

TRAINING & SEMINARS

DIA conducts professional training in the area of criminal defense. Annual seminars and the Defense Investigators Training Academy (DITA) offer training opportunities in a variety of investigative subjects

MEMBERSHIPS

DIA membership includes “Active” and “Associate” members. Benefits include discounts to association training, the association newsletter and access to a network of criminal defense professionals.

DIA SPOTLIGHT

DIA Annual Seminar 2026 
60 Year Anniversary!

MAY 21-22
 
As DIA Celebrated it's 60 year diamond anniversary, we recognized our past and the valuable Investigator specific training provided over the decades.  DIA Seminar Committee Chair, Liz Aguilar, put together a successful conference hat as selected a classy venue in Monterey, CA and we look forward to seeing you at our next events!. 



Seminar info & registration

DIA Investigator of the year for 2026 is Jody Ahrens.
Remember to cognize your colleagues for their dedication and passion.  

Prior Recipients

Defense Investigators 
Making Headlines

DITA connecting 
with SDSU

2025s DITA IV was attended by over 60 participants and 10% were San Diego State University Alums!  

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Importance of 
Defense Investigators

Articles by Journalist Anat Rubin highlighting the importance of Public Defenders and Defense Investigators.  See the two links below for these powerful stories.

CA Wrongful convictions issue The Man who unsolved a murder - 
Defense Investigator focus

EMPLOYMENT OPPORTUNITIES

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WHAT OUR MEMBERS SAY