Fourth Offense DUI Defense Lawyers in Los Angeles County

Providing Strategic Defense for Fourth DUI Charges

A fourth DUI charge in California can lead to felony prosecution, substantial custody time, fines, license revocation, ignition interlock requirements, and habitual traffic offender status. Although prior convictions increase the potential penalties, prosecutors must still prove the new DUI and establish that three qualifying prior offenses fall within the 10-year lookback period.

If you are facing a fourth DUI, our team at DUI Defense Group will examine the traffic stop, chemical testing, officer statements, DMV evidence, and prior conviction records for weaknesses. We develop a focused defense strategy to protect your freedom, driving privilege, employment, and future.

When a Fourth DUI Becomes a High-Stakes Case

California Vehicle Code § 23550 applies when a person is convicted of a new DUI and the current violation occurred within 10 years of three or more separate qualifying violations that resulted in convictions. The prior record increases the possible sentence, but it does not establish guilt in the new case.

Three Qualifying Priors Must Be Established

Qualifying priors may include DUI, DUI causing injury, alcohol-related reckless driving commonly called a wet reckless, and certain equivalent out-of-state convictions.

The 10-year period is measured between the dates of the violations, not merely the conviction dates. Arrests without qualifying convictions do not automatically count. Court records, plea forms, offense dates, and identity information should be reviewed carefully.

A Fourth DUI Is Not Automatically a Felony

A fourth DUI under § 23550 is a wobbler that may be prosecuted as a misdemeanor or felony. The decision can depend on the evidence, prior record, probation history, a collision, refusal allegation, BAC, and other circumstances.

Vehicle Code § 23550.5 provides another felony pathway when the accused has certain prior felony DUI or intoxicated-driving convictions, making the exact outcome of each prior case important.

The DMV Deadline Comes Before the Criminal Case Is Resolved

A fourth DUI arrest normally creates a criminal prosecution and a separate DMV Administrative Per Se proceeding. The DMV case concerns the driving privilege and may move forward while the court case is pending.

Requesting a DMV Hearing

A driver generally has 10 days to request a DMV hearing. For a driver age 21 or older, a blood or breath result of 0.08% or higher generally creates a one-year APS suspension for a repeat offense within 10 years. A 0.01% result may trigger action while on DUI probation.

A timely request preserves the opportunity to challenge the stop, arrest, test, and required procedures while obtaining DMV discovery.

How a Refusal Can Affect the License

A current refusal or failure to complete a required blood or breath test can lead to a three-year DMV revocation when there are two or more qualifying priors or administrative actions within 10 years. Court consequences are separate.

What a Fourth DUI Conviction Can Mean

The final sentence depends on whether the charge remains a misdemeanor or is treated as a felony, whether probation is granted, and whether the prosecution proves additional allegations.

Custody, Fines, and Probation

Vehicle Code § 23550 authorizes 180 days to one year in county jail or felony punishment under Penal Code § 1170(h), plus a $390 to $1,000 base fine. A felony term may be 16 months, two years, or three years, and assessments can substantially increase the total cost.

DUI probation generally lasts three to five years. Under § 23552, probation ordinarily includes at least 180 days in jail. A person who specifically requests it and shows good cause may qualify for an alternative of at least 30 days in jail with a 30-month DUI program.

DUI Program, License Revocation, and Ignition Interlock

Depending on prior program completion and the court order, an 18- or 30-month licensed DUI program may apply. Full reinstatement generally requires proof of completion.

A non-injury fourth DUI conviction generally brings a four-year license revocation. A qualifying alcohol-related or alcohol-and-drug conviction under § 23550 also carries a 36-month IID requirement. Drug-only cases and approved exemptions follow different rules.

Habitual Traffic Offender Designation

A person punished under § 23550 is designated a habitual traffic offender for three years after conviction.

Other Allegations Can Increase the Exposure

Sentencing can become more severe when prosecutors add allegations beyond the basic DUI charge. Each must be proved and evaluated separately.

High BAC, Refusal, and Probation Status

A BAC of 0.15% or higher may affect sentencing. A proved willful refusal of a required breath test, or urine test when applicable, can add 18 days in jail. A new arrest during an earlier DUI probation term may also trigger a probation violation case.

Child Passenger, Excessive Speed, or Injury

For a misdemeanor fourth DUI, a child under 14 in the vehicle can add 90 days in jail. Driving at least 30 mph over the limit on a freeway, or 20 mph over elsewhere, together with reckless driving can add 60 consecutive days.

An injury collision may lead to DUI causing injury, restitution, longer license consequences, or felony allegations. A fatality can create vehicular manslaughter or, in extreme circumstances, Watson murder exposure.

Building the Defense Requires Two Separate Reviews

A fourth DUI case should not be approached as though the prior record proves the new allegation. The defense must test the evidence from the current arrest while independently reviewing whether the prosecution can establish three qualifying priors within the statutory period.

Reviewing the New Arrest

Police reports should be compared with video, dispatch records, witnesses, field sobriety conditions, breath-device records, blood documentation, and test timing. The defense asks whether the stop was lawful, driving can be proved, and the evidence reliably establishes impairment or an unlawful BAC.

Reviewing the Prior Convictions

The priors require a separate review. An incorrect offense date, incomplete record, identity problem, nonqualifying plea, or case outside the lookback period may prevent § 23550 from applying.

Defense Issues in a Fourth DUI Case

Depending on the facts, a defense may involve one or more of the following:

• The traffic stop lacked a lawful basis. Evidence obtained after an unsupported stop may be challenged through a motion to suppress.
• The prosecution cannot prove actual driving. Vehicle ownership, presence near a car, or an ambiguous statement may not establish who operated the vehicle beyond a reasonable doubt.
• The observations do not establish impairment. Fatigue, anxiety, injuries, medical conditions, road conditions, and confusing instructions can affect field sobriety test performance.
• The breath or blood result is unreliable. Calibration failures, procedural errors, sample contamination, fermentation, chain-of-custody gaps, or testing delays may undermine the reported blood alcohol level.
• The BAC was still rising after driving. A later chemical test can reflect alcohol absorbed after the vehicle was operated and may not prove the BAC at the relevant time.
• One or more prior convictions do not qualify. Incorrect dates, identity errors, missing records, or nonqualifying dispositions may prevent fourth-offense sentencing or felony treatment.
• Statements were obtained unlawfully or recorded inaccurately. The questioning, required warnings, and recordings may affect whether alleged admissions can be used or trusted.

Can a Fourth DUI Remain a Misdemeanor or Be Reduced?

The outcome depends on the evidence, prior record, prosecutor, and court. The defense may seek suppression, dismissal, exclusion of a prior, misdemeanor treatment, a reduction such as wet reckless, or better sentencing terms. No result is guaranteed, but a fourth DUI is not an automatic felony conviction.

Steps to Take Before the Case Develops Further

Keep the temporary license, citation, release papers, towing records, photographs, messages, location history, and witness information. Record the reason for the stop and timing of any breath or blood test while details remain fresh.

Collect records from each prior DUI or wet reckless case, including offense dates, pleas, program completion, probation status, and DMV history. Avoid posting about the arrest or giving detailed statements before receiving legal advice.

Focused Representation for Serious Repeat DUI Charges

Since 2008, DUI Defense Group has focused on DUI and driving-related defense in California. Fourth-offense cases require close attention to scientific evidence, prior records, DMV rules, sentencing, and the misdemeanor-or-felony filing decision.

Rob Samudrala’s former-prosecutor experience provides insight into charging and negotiation decisions. Former DUI judge Robert Granieri adds a judicial perspective on evidence, prior allegations, and defense arguments. The defense is built around the complete record, not the assumption that a repeat arrest requires the maximum penalty.

We represent clients throughout Los Angeles County and surrounding Southern California communities, providing a direct assessment of the charge, DMV action, alleged priors, and defense options.

Discuss Your Fourth DUI Case With a Los Angeles Attorney

Early intervention allows more time to request the DMV hearing, preserve testing evidence, obtain prior-court records, and address the filing decision. Contact DUI Defense Group at 424-402-0841 for a free consultation about a fourth DUI allegation in Los Angeles or Southern California.