First Time DUI Offense in California: What to Expect and How a Former Prosecutor Can Help
Being arrested for a first-time DUI offense can be one of the most stressful moments in a person’s life. Most people charged with DUI have never been in trouble before, don’t know what to expect, and worry about their job, their license, and their future.
If you are facing a DUI charge under California Vehicle Code 23152, the most important decision you will make is who you choose as your DUI attorney.
At Kolacia Law Firm, we represent individuals charged with Driving Under the Influence cases throughout Southern California, including Rancho Cucamonga and the Inland Empire. Our firm is led by Daniel Kolacia, a former prosecutor with over 15 years in the District Attorney’s Office, more than 19 years of criminal law experience, and over 100 jury trials.
What is a First Time DUI Offense Under Vehicle Code 23152?
A first-time DUI offense generally means you have not been convicted of a DUI within the past 10 years. Most first DUI cases are charged under:
- Vehicle Code 23152(a) – Driving Under the Influence of Alcohol or Drugs
- Vehicle Code 23152(b) – Driving with a Blood Alcohol Concentration (BAC) of 0.08% or higher
Even though this may be your first arrest, DUI is a serious criminal charge with long-term consequences if not handled properly.
Common Penalties for a First Time DUI In California
While every case is different, a first time DUI conviction can result in:
- Up to six months in jail in extreme cases
- Informal Probation from 3-5 years
- DUI fines and fees ranging from $2,000 to approximately $20,000
- Mandatory DUI education programs ranging in length from three, six, or nine months
- Driver’s license suspension through the Department of Motor Vehicles (DMV)
- Possible ignition interlock device (IID) requirements
- MADD meeting
- Visiting the Hospital and Morgue (HAM)
- Weekly AA meetings and more
The good news is that many first-time DUI cases never result in the maximum penalties and some are reduced or dismissed entirely with the right strategy.
First Offense DUI Probation
First-time DUI probation in San Bernardino and Riverside County is not formal probation. Formal probation requires reporting and strict monitoring by a probation officer. There is no probation offer to report to with Informal DUI Probation.
Informal probation does require:
- Do not drive with any measurable amount of alcohol in your blood – even a .01% BAC is a violation of informal probation
- You must agree to take a breath test when asked to do so by a peace officer
- You must complete DUI classes ordered by the court
- You must obey all laws
A probation violation will occur if you break the terms of your probation. Common probation violations picking up a new criminal charge, not completing DUI classes, or failing to complete any court ordered jail time. If a violation occurs the court will issue a bench warrant and schedule a new court hearing called a Probation Revocation Hearing. If the court finds you in violation of probation, the judge may impose further penalties including attending AA meetings to serving the entire 6 months in jail.
Why First Time DUI Cases Are Often More Defensible Than You Think
Many people assume that if they were arrested they must be guilty. That is not how DUI law works.
As a former prosecutor who handled DUI and serious vehicle cases for years, Attorney Daniel Kolacia knows that first-time DUI cases frequently contain weaknesses including:
- Questionable traffic stops
- Improperly administered field sobriety tests
- Inaccurate breath or blood testing
- Violations of Title 17 testing regulations
- Officer assumptions rather than evidence
These issues are often overlooked unless your DUI attorney knows exactly how prosecutors build DUI cases and how they fall apart.
The Former Prosecutor Advantage in a First DUI Case
Before founding Kolacia Law Firm, Daniel Kolacia served as a prosecutor for over 15 years, where he:
- Tried DUI cases before juries
- Founded the Vehicular Homicide Unit in Riverside County DA Office
- Earned the MADD Prosecutor of the Year in Riverside County
- Trained prosecutors and law enforcement on DUI and vehicular crimes
This background provides a unique advantage for DUI defense clients. Prosecutors know when a defense attorney is prepared to take a case to trial and they will negotiate differently because of it.
Today, that experience is used exclusively to protect individuals accused of DUI.
DMV Hearings: The Step Most First-Time DUI Defendants Miss
When you are arrested for DUI, the police will take your California driver’s license and give you a pink “admin per se” form that is a 30-day temporary license. This temporary license will allow you to drive for 30 days and will lead to an automatic suspension of your license unless you request to challenge the suspension through the DMV through in an administrative hearing. After a DUI arrest, you have only 10 days to request a DMV hearing through the Department of Motor Vehicles. This is a separate case from the criminal court proceeding and it will directly affect your driver’s license.
As a DUI attorney, the Kolacia Law Firm will represent you in this administrative hearing. Our office has handled 100s of these hearings for our clients in the past. We will handle everything for you on the DMV hearing ensuring a smooth and speedy resolution to protect your driving privileges.
A skilled Rancho Cucamonga DUI attorney can often:
- Prevent or delay a license suspension
- Cross-examine the arresting officer
- Obtain evidence that helps the criminal case
Failing to request a DMV Hearing on time can permanently harm your defense.
Can a First-Time DUI Be Dismissed or Reduced?
Yes, First-time DUI cases are often reduced or dismissed when:
- Evidence is suppressed
- Chemical testing is unreliable
- Officers fail to follow legal procedures
- Prosecutors cannot meet their burden of proof
Having a DUI attorney with jury trial experience matters. Prosecutors are far more cautious when they know the defense is capable of winning in front of a jury.
Dedicated DUI Defense and Ongoing Training
Attorney Daniel Kolacia is a member of the DUI Defense Attorneys Association of California, regularly attending local and national DUI training to stay current on:
- Breath and blood testing science
- DUI trial strategies
- Emerging defenses and technology
The commitment to continuing educations ensures that every first-time DUI client receives a defense based on the most current and effective strategies available.
Serving Rancho Cucamonga and Southern California
Kolacia Law Firm proudly represents DUI clients all over the Inland Empire and Southern California including:
- Rancho Cucamonga
- Fontana
- Ontario
- Upland
- Rialto
- Montclair
If you are searching for a DUI attorney near you, experience, credibility, and courtroom skill matter, especially in first-time DUI cases where early decisions shape the entire outcome.
Talk to a Rancho Cucamonga DUI Attorney Before You Decide Anything
A first-time DUI offense does not define you. How you handle it will though. The earlier you involve a qualified DUI attorney, the more options you may have.
At Kolacia Law Firm, we understand the fear and uncertainty that come with a DUI arret. Our goal is to protect your record, your license, and your future using the insight of a former prosecutor and the skill of a trial-tested defense lawyer.
Confidential consultations are available.
First Time DUI Offense FAQs
What is considered a first-time DUI offense in California?
A first time DUI offense means that you have not been convicted of a DUI within the past 10 years. Most first-time DUI cases are charged under California Vehicle Code 23152(a) and 23152(b). Even if you have never been arrested before, the penalties can be serious without proper legal representation.
What’s the outcome for first-time DUI case?
For a first-time offense a DMV suspension and DUI classes are common. The court process will last from three months to about one year. There are typically several court hearings involved. Our office will handle all these hearings until your case is resolved.
How much does a first-time DUI offense cost?
The cost of a first-time DUI offense depends on several factors in the case. Simple cases without any complexity range from $4,500 to $9,500. Compared to representation in other type of cases you don’t have to pay a high price for a favorable outcome. Kolacia Law Firm offers affordable rates and several payment plans.
Why hire a former prosecutor for a first-time DUI?
Former prosecutors know how DUI cases are built, where they are weak, and how prosecutors evaluate risk at trial. This insight often leads to better negotiations, stronger motions, and improved results for first-time DUI defendants.



















