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Pomona sits at one of the busiest crossroads in Southern California — the convergence of Interstate 10, the SR-57 (Orange Freeway), and the SR-60 (Pomona Freeway), anchored by the Fairplex and the annual LA County Fair, Cal Poly Pomona, and Western University of Health Sciences. All that traffic, plus a large student and event-going population, means a steady volume of DUI stops, from late-night freeway pulls to enforcement around the fairgrounds and the city's commercial corridors. A Pomona DUI is a real criminal charge with real consequences, and the city's distinct mix of policing, prosecution, and courthouse routing shapes how your case will actually be handled.
How DUIs are policed in Pomona
Pomona is served by its own Pomona Police Department — it is not a Los Angeles County Sheriff contract city — and the agency runs an active traffic-safety program funded in part through grants from the California Office of Traffic Safety (OTS). That funding pays for publicized DUI/driver's-license checkpoints and roving saturation patrols that add extra officers looking specifically for impaired drivers, typically positioned where the city has seen a history of alcohol-related collisions and arrests.
On the OTS rankings, Pomona generally registers as a meaningful-enforcement city for a community its size, consistent with its grant-funded DUI operations and its dense freeway and event traffic. (DRAFT — verify current-year OTS figures before citing any specific rank.) The freeways through and around Pomona — the I-10, the SR-57, and the SR-60, including the heavily traveled 57/60 interchange — are patrolled by the California Highway Patrol, with the CHP Baldwin Park area office covering this stretch of the eastern San Gabriel Valley. (DRAFT — confirm the exact CHP area office covering Pomona's freeways.) A freeway DUI stop by CHP and a surface-street stop by Pomona PD can both end up in the same courthouse but start with different reports and different officers.
- Pomona Police Department enforces DUI laws on city streets through its Traffic Bureau, with OTS grant-funded checkpoints and saturation patrols.
- DUI checkpoints are publicized in advance and placed in areas with a history of impaired-driving collisions and arrests.
- CHP handles DUI enforcement on the I-10, SR-57, and SR-60 freeways and the 57/60 interchange near Pomona.
- Field sobriety tests, preliminary breath tests, and chemical-test refusals all generate paperwork that a defense attorney can examine for errors.
Who prosecutes a Pomona DUI — and where
Unlike charter cities such as Los Angeles, Long Beach, or Pasadena — which run their own city-prosecutor criminal divisions for misdemeanors — Pomona's DUI cases are prosecuted by the Los Angeles County District Attorney's Office, through its Pomona Branch. The DA handles both misdemeanor and felony DUI filings here. The Pomona City Attorney prosecutes certain municipal-code violations, but Vehicle Code DUI charges in Pomona are filed by the LA County DA, not the city. (DRAFT — verify the Pomona City Attorney's criminal scope and confirm the DA Pomona Branch as the charging office.)
Pomona DUI cases are heard at the Pomona Courthouse (East District), a two-building complex: misdemeanor DUI (and traffic) cases are heard at the North building (350 W Mission Blvd), while felony DUI cases go to the South building (400 Civic Center Plaza), which also houses the DA's Pomona Branch. The complex also serves nearby communities such as Diamond Bar, La Verne, Claremont, San Dimas, and Walnut. (DRAFT — confirm current courthouse routing for Pomona DUI matters.) Our firm does not maintain a dedicated Pomona Courthouse page, so this is the honest picture: your case is handled at the Pomona Courthouse, and Ron Chini appears on Los Angeles County DUI matters from his Irvine office. For the broader county overview, see our Los Angeles County DUI defense hub.
Who prosecutes a DUI in Pomona — the city attorney or the District Attorney?
Pomona DUI cases are prosecuted by the Los Angeles County District Attorney's Office, through its Pomona Branch, for both misdemeanor and felony charges. Pomona is not a charter city with its own criminal DUI division like Los Angeles or Long Beach; the city attorney handles civil and municipal-code matters rather than Vehicle Code DUI prosecutions. (DRAFT — verify prosecutor scope before relying on this.)
Which courthouse will hear my Pomona DUI case?
Pomona DUI cases are heard at the Pomona Courthouse (East District) — a two-building complex where misdemeanor DUI is heard at the North building (350 W Mission Blvd) and felony DUI at the South building (400 Civic Center Plaza). It also serves nearby cities including Diamond Bar, La Verne, Claremont, San Dimas, and Walnut. (DRAFT — confirm current routing.) You can review the broader picture on our Los Angeles County DUI defense page.
Does Pomona run DUI checkpoints?
Yes. The Pomona Police Department conducts publicized DUI/driver's-license checkpoints and saturation patrols, often funded by California Office of Traffic Safety grants and placed where the city has seen impaired-driving collisions and arrests. Freeway DUI enforcement on the I-10, SR-57, and SR-60 is handled by the CHP. Every checkpoint and stop must follow legal requirements, and any misstep can become part of your defense.
What should I do about my license after a Pomona DUI arrest?
Act fast. You generally have only 10 days from the date of arrest to request a DMV hearing, or your license is automatically suspended — separate from anything that happens in court. Calling an experienced DUI attorney right away lets you preserve that hearing and start building your defense. Learn more on our 10-day DMV hearing page.
Can Ron Chini defend my Pomona DUI from his Irvine office?
Yes. Ron Chini is an experienced DUI defense attorney who regularly handles Los Angeles County cases, including those heard at the Pomona Courthouse, from his office in Irvine. He does not claim to be a certified specialist, and no result is ever guaranteed — but he offers a free consultation and flexible payment plans, and you can reach him 7 days a week at (888) 998-6938.
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