An experienced criminal trial attorney, Yamashiro had his own criminal defense practice and served as a Los Angeles County Deputy Public Defender. He has tried 52 cases to jury and litigated over 200 bench trials in municipal, juvenile, and superior court. L.A. County Supervisor Mark Ridley Thomas appointed Yamashiro to the Los Angeles County Probation Commission, where he served as president for two years.

Yamashiro leads an in-house staff of eight, including:

  • A writs and appeals attorney to answer practice questions and provide written legal support for attorneys and file writs on behalf of IJDP clients;
  • A resource attorney to provide attorneys support on entitlements issues ranging from academic support to mental health services and foster care, in addition to carrying his own caseload;
  • A social worker to prepare bio-psychosocial assessments of youth and their families for use in developing the guilt and disposition stages of their cases, and to oversee a network of juvenile- specific social workers to provide support for IJDP clients; and
  • An investigator who carries her own caseload and coordinates a network of investigators who are juvenile specialists.

Yamashiro estimates IJDP will handle up to 2,000 cases per year. Attorneys who are interested in joining IJDP should contact Tracy Andrade, IJDP Program Coordinator, at or (213) 896-6429.

The Los Angeles County Bar Association (LACBA) is one of the largest voluntary metropolitan bar associations in the nation, with nearly 18,000 members. LACBA is engaged in advancing the administration of justice and meeting the professional needs of lawyers. For more information on LACBA, visit

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