Judge Kevin E. Dunleavy

Judge Kevin E. Dunleavy joined the San Mateo County Superior Court on July 9, 2021, appointed by Governor Gavin Newsom. His background as a career prosecutor — described as 'returning home' to San Mateo County — is the single most defining data point available about his judicial orientation. Prosecutors-turned-judges frequently bring a law-and-order perspective to the bench, a familiarity with evidentiary standards from the People's side, and a tendency to be skeptical of procedural gamesmanship by defense counsel. That said, prosecutorial backgrounds do not uniformly predict outcomes, and without a body of analyzed rulings, any characterization of his specific tendencies must be held with appropriate caution. The one documented case type on record — a 2023 DUI crash resulting in a prison sentence handed down in October 2025 — is consistent with a judge willing to impose custodial sentences in serious vehicular cases, though a single sentencing outcome cannot establish a pattern. It does suggest he is not reflexively lenient in cases involving public safety offenses with serious consequences. Judge Dunleavy has been on the bench since mid-2021, meaning he is a relatively junior jurist still developing his courtroom identity. Attorneys appearing before him should expect a judge who is still establishing procedural norms and may be more exacting about compliance with local rules as he builds his docket management style. His prosecutorial roots suggest comfort with structured, evidence-driven arguments and likely impatience with speculative or emotionally-driven advocacy unsupported by the record.

Given Judge Dunleavy's prosecutorial background, attorneys on both sides of criminal matters should anticipate a judge who is deeply familiar with how the People build cases — including the strengths and weaknesses of law enforcement testimony, chain of custody arguments, and charging decisions. Defense counsel should be especially rigorous in their evidentiary challenges, presenting them with precision and legal authority rather than broad rhetorical attacks on police credibility, which a former prosecutor may find unpersuasive or even counterproductive. Conversely, prosecutors appearing before him should not assume automatic deference — a judge who has lived the role knows when the People's case is thin and may push back on overreach. For civil practitioners, the prosecutorial background is less directly predictive, but it does suggest a judge who values factual clarity, organized presentation, and adherence to procedural rules. Attorneys should front-load their factual narratives with concrete, documented evidence rather than relying on inference or equitable appeals. Motions should be tightly briefed with clear headings and direct citations. Because Judge Dunleavy was appointed in 2021 and is still relatively early in his tenure, attorneys who have appeared before him recently are a valuable intelligence resource. His courtroom norms, preferred motion hearing formats, and tolerance for oral argument are still being established. Checking with the clerk's office about his current standing orders and any department-specific rules before any appearance is essential.

• critical

  Review San Mateo Superior Court Local Rules and Department Orders

  Before any appearance, obtain and review the current local rules for Judge Dunleavy's department. As a judge appointed in 2021, his standing orders may have evolved and may not be widely documented in secondary sources. Contact the clerk's office directly to confirm current procedures for motion hearings, tentative rulings, and oral argument.

• critical

  Prepare Detailed Factual Record for Any Motion

  Given the prosecutorial background, assume Judge Dunleavy will scrutinize the evidentiary record closely. Every factual assertion in briefs should be supported by a specific citation to the record. Do not rely on characterizations of evidence — attach the evidence itself where possible.

• critical

  Develop Robust Sentencing Mitigation Package in Criminal Matters

  The documented prison sentence in the DUI case signals willingness to impose custodial terms in serious cases. Defense counsel should prepare comprehensive mitigation materials including character letters, treatment records, employment history, and expert assessments well in advance of any sentencing hearing.

• important

  Network with Local San Mateo Practitioners for Current Intelligence

  Because no analyzed rulings or attorney observations are available, the most valuable preparation is speaking with San Mateo County criminal and civil practitioners who have appeared before Judge Dunleavy since 2021. Their firsthand observations will fill the intelligence gap that data sources cannot.

• important

  Anticipate Skepticism of Weak Evidentiary Challenges

  Former prosecutors are typically well-versed in evidentiary doctrine from the People's perspective. Motions to suppress or exclude evidence should be grounded in clear constitutional or statutory authority with strong factual support — speculative or boilerplate challenges are likely to be denied without extended consideration.

• Nice

  Prepare Concise, Well-Organized Briefs

  Prosecutorial writing culture emphasizes clarity and directness. Briefs that are dense, disorganized, or padded with unnecessary argument may not land well. Use clear headings, numbered arguments, and concise paragraphs. Lead with your strongest point.

• ›Arrive early and be fully prepared — as a relatively new judge, Judge Dunleavy is likely to run a structured, punctual courtroom and may view tardiness or unpreparedness as disrespectful of the court's authority.
• ›Address the court formally and avoid casual or overly familiar tone; a former prosecutor turned judge will likely maintain clear professional boundaries in the courtroom.
• ›Do not make unsupported factual assertions from the podium — be prepared to cite the specific page and line of any record you reference, as a judge with prosecutorial training will know when counsel is characterizing rather than quoting evidence.
• ›If you disagree with a ruling, register your objection clearly and professionally on the record, then move on — do not argue past the ruling or attempt to relitigate it in the same hearing.
• ›Familiarize yourself with any tentative ruling system the department uses and be prepared to either accept the tentative or articulate specifically why oral argument is warranted.