The Honorable Trina Thompson

Alameda County Superior Court, Department 9


The Hon. Trina Thompson is a judge for the Alameda County Superior Court in California. She was elected to the bench in November 2002. She holds the distinction of being the first African American woman to be elected to the Alameda County Superior Court.

Judge Thompson graduated with her B.A. in legal studies from the University of California, Berkeley in 1983. She went on to earn her J.D. from the University of California, Berkeley School of Law in 1986.

After graduating from law school, Thompson served several clerkships before beginning her legal career at the Alameda County Public Defender's Office, where she worked as an assistant public defender. During her four-year tenure there, Thompson represented clients during preliminary hearings.

She would then leave the public sector to open her own private practice in 1991. During her time in solo practice, Thompson specialized in criminal defense with an emphasis on juvenile, misdemeanor, and felony trials. Her other areas of practice included juvenile dependency, adoptions, and guardianship matters.

Then, in 2001, Thompson was appointed to serve as a court commissioner for the Alameda County Superior Court's Juvenile Court. She would hold that position until winning the election to the bench a year later.

During her time on the bench, Judge Thompson has presided over felony and misdemeanor trials and has been a part of the Mentor Diversion Program for juvenile first-time offenders.

Thompson has served as the chair of the Alameda County Educational Task Force. Her other memberships have included the California Young Lawyers Association, the California Public Defender's Association, the Charles Houston Bar Association, the Women Defender's, the California Attorney's for Criminal Justice, as well as her State and local Bar Associations.

In 2011, President Barack Obama appointed Thompson to serve on the Coordinating Council on Juvenile Justice and Delinquency Prevention.

Judge Thompson, who grew up in Oakland and Vallejo, California, was a member of her high school and college track-and-field team. She still enjoys running in her free time.

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