California Child Psychologist William Zahn Charged for Child Sex Abuse Material; State Restricts License

May 12, 2026

California child psychologist William Lawrence Zahn is facing felony criminal charges in Riverside County related to alleged child sexual abuse material. According to court records, Zahn was arrested in September 2025 and charged under California Penal Code 311.4, which involves bringing into the state matter depicting sexual conduct by a minor. Prosecutors also filed a felony enhancement connected to the alleged offense. Zahn has pleaded not guilty, and the criminal case remains ongoing in Riverside County Superior Court.

While the prosecution moves forward, the California Board of Psychology has imposed restrictions on Zahn’s ability to practice. Records indicate the board took disciplinary action while the felony case is pending, raising concerns about patient safety and oversight of licensed mental health professionals accused of serious crimes involving children.

The case has continued through multiple hearings and settlement conferences since Zahn’s arrest. Court filings show ongoing proceedings related to supervision and travel conditions while the matter remains active before the court. No trial date has yet been announced.

(Source: Riverside County Superior Court case no.  FERI2505052, filed 9/2/25)