California Legal Brief

The Rule of Chi v. Department of Motor Vehicles is that a DMV hearing officer's combination of investigative and adjudicatory functions does not violate due process when the officer acts as a neutral fact-finder rather than as an advocate for the department, under circumstances where the officer introduces relevant evidence, asks clarifying questions, and rules on objections pursuant to a policy requiring neutrality.

Appeal from denial of petition for writ of mandate in Superior Court, Alameda County.

Petitioner Appellant was Pengfei Philip Chi — the driver whose license was suspended for refusing chemical testing after a DUI arrest.

Defendant Respondent was Department of Motor Vehicles — the agency that suspended Chi's driving privileges through administrative hearing.

The suit sounded in administrative law challenging license suspension. The suit involved Chi's challenge to the DMV's suspension of his driving privileges following his refusal to submit to chemical testing after a DUI arrest.

The key substantive facts leading to the suit were that CHP officers stopped Chi's vehicle in March 2022 after observing it swerving and traveling over 100 mph, officers noted signs of intoxication (red watery eyes, alcohol odor, slurred speech, swaying), Chi admitted drinking two beers and failed field sobriety tests, Chi was arrested for DUI and repeatedly refused chemical testing despite being advised of suspension consequences, and the DMV hearing officer sustained the license suspension after an administrative hearing where she acted as neutral fact-finder and introduced evidence over Chi's hearsay objections.

The procedural result leading to the Appeal: The trial court denied Chi's petition for writ of mandate, ruling that the administrative hearing did not violate due process despite the hearing officer's dual role of introducing evidence and ruling on objections.

The key question(s) on Appeal: Whether the DMV hearing officer violated due process by acting as both prosecutor and adjudicator when she introduced department evidence and ruled on Chi's objections to that evidence.

The Appellate Court held that no due process violation occurred because the hearing officer functioned as a neutral investigator-adjudicator rather than as a department advocate, which represents an inquisitorial rather than adversarial approach that is constitutionally permissible, and Chi failed to present evidence of an unacceptable risk of bias sufficient to overcome the presumption of adjudicator impartiality.

The case is inapplicable when the hearing officer actually advocates for the department rather than maintaining neutrality, when there are specific circumstances demonstrating a constitutionally intolerable possibility that the adjudicator harbored an interest in the outcome, when the adjudicator has a financial interest in the outcome, or when there is evidence of personal bias or grudge against a party.

The case leaves open the resolution of the broader due process standard that the California Supreme Court will address in Romane v. Department of Motor Vehicles (review granted), and whether any combination of investigative and adjudicatory functions could ever satisfy due process requirements in DMV hearings as questioned by the Clarke court.