Error and/or relief
The trial court abused its discretion in denying the defendant’s motion for mental health diversion because substantial evidence did not support the court’s conclusion that his mental illnesses were not a significant factor in the commission of the underlying offenses.
First Holding:
In 2018, the Legislature enacted provisions to create a pretrial diversion program for defendants with certain mental health disorders. Pretrial diversion allows for the suspension of criminal proceedings and potential dismissal of charges upon successful completion of mental health treatment. The statute expressly promotes increased diversion of individuals with mental disorders to mitigate the individuals’ entry and reentry into the criminal justice system while protecting public safety.
Authority:
PEN 1001.35
PEN 1001.36
Vaughn v. Superior Court (2024) 105 Cal.App.5th 124, 133
Second Holding:
Section 1001.36 provides that a defendant is eligible for pretrial diversion if the defendant has been diagnosed with a specified mental disorder within the last five years by a qualified mental health expert, and the defendant’s mental disorder was a significant factor in the commission of the charged offense. If the defendant has been diagnosed with a mental disorder, the court shall find that the defendant’s mental disorder was a significant factor in the commission of the offense unless there is clear and convincing evidence that it was not a motivating factor, causal factor, or contributing factor to the defendant’s involvement in the alleged offense.
If the defendant is eligible, the court also must determine whether the defendant is suitable for pretrial diversion based on satisfaction of the following criteria: (1) In the opinion of a qualified mental health expert, the defendant’s symptoms of the mental disorder causing, contributing to, or motivating the criminal behavior would respond to mental health treatment; (2) The defendant consents to diversion and waives the defendant’s right to a speedy trial; (3) The defendant agrees to comply with treatment as a condition of diversion; and (4) The defendant will not pose an unreasonable risk of danger to public safety, as defined in Section 1170.18, if treated in the community.
Authority:
People v. Graham (2024) 102 Cal.App.5th 787, 795
Third Holding:
We review a trial court’s ruling on a petition for pretrial mental health diversion for abuse of discretion. A court abuses its discretion when it makes an arbitrary or capricious decision by applying the wrong legal standard, or bases its decision on express or implied factual findings that are not supported by substantial evidence. Therefore, we review a trial court’s factual findings in support of its ruling for substantial evidence.
Authority:
People v. Graham (2024) 102 Cal.App.5th 787, 795
People v. Whitmill (2022) 86 Cal.App.5th 1138, 1147
Fourth Holding:
The trial court failed to apply the presumption that, given the timely diagnoses of mental health disorders, the mental condition contributed to his behavior. The burden then was on the prosecution to rebut the presumption by producing clear and convincing evidence tha there was no causal connection.
Authority:
People v. Harlow (2025) 113 Cal.App.5th 485, 490
Fifth Holding:
However, while eligibility and suitability are preconditions, mental health diversion remains discretionary even if they are met. Because of the existence of this residual discretion, the proper remedy is to remand with instructions for the trial court to consider both eligibility and suitability, along with making relevant findings, in accordance with the current law.
Authority:
Sarmiento v. Superior Court (2024) 98 Cal.App.5th 882
People v. Qualkinbush (2022) 79 Cal.App.5th 879, 888

