San Jose DUI Accident Defense Lawyer
A DUI arrest following a car accident can create two connected but distinct issues: the allegation that you were driving under the influence and the prosecution’s allegations concerning the collision.
If you are facing a DUI charge after an accident in San Jose or Santa Clara County, the defense should examine both the DUI evidence and the circumstances of the crash.
Knight Justice represents clients facing DUI charges involving accidents, injuries, and serious criminal allegations. Call Nana Knight at (408) 877-6177 for a case evaluation.
DUI Charges After an Accident
A collision does not automatically answer the legal questions in a DUI case.
The defense may need to determine:
- What caused the collision?
- Was the driver impaired?
- What did the officer observe before the DUI investigation?
- Was chemical testing reliable?
- Was anyone injured?
- How serious were the injuries?
- Did the alleged DUI cause the injury?
- Were there witnesses or video recordings?
- Are additional criminal charges being considered?
These questions can become especially important when an accident results in injury or death.
DUI With Injury in California
California Vehicle Code §23153 addresses driving under the influence while committing an act forbidden by law or neglecting a legal duty in driving that proximately causes bodily injury to another person. The statute includes provisions involving alcohol, drugs, and other circumstances.
The potential consequences depend on the precise charge and the defendant’s prior record.
California’s 2026 DUI punishment overview identifies first and second DUI-with-injury offenses as wobblers under the applicable provisions and third or subsequent offenses as felonies.
How We Defend DUI Accident Cases
Investigating the DUI Stop
The defense can examine why the traffic stop occurred and what the officer observed before the DUI investigation began.
Reviewing Field Sobriety Tests
Field sobriety tests may be affected by roadway conditions, footwear, injuries, medical conditions, weather, lighting, and other circumstances.
The surrounding facts matter when evaluating the significance of the results.
Examining Breath and Blood Testing
Chemical-test evidence can be central to a DUI accident case.
The defense may examine:
- Timing of the test
- Collection procedures
- Testing procedures
- Instrument records
- Laboratory records
- Blood preservation
- Chain of custody
- Other evidence relevant to reliability
Investigating the Collision
A collision investigation may include:
- Vehicle damage
- Skid marks
- Roadway conditions
- Traffic signals
- Vehicle speeds
- Witness statements
- Surveillance footage
- Dash-camera footage
- Accident reconstruction
The goal is to determine what the available evidence actually shows.
Does a DUI Automatically Make You Responsible for the Accident?
No single piece of evidence should be treated as a substitute for the elements the prosecution must prove.
A DUI accident case can involve separate questions concerning impairment, driving conduct, causation, and injury.
If the prosecution alleges that the DUI caused an injury, the defense should examine the evidence supporting that causal connection.
DUI Accident With Serious Injury
An accident involving serious bodily injury can expose a defendant to substantially greater criminal consequences.
The defense may need to review medical records, accident reconstruction, photographs, expert evidence, and the circumstances of the alleged injury.
The seriousness of an injury can affect the charges and potential penalties.
DUI Accident Resulting in Death
A fatal DUI collision can lead to vehicular manslaughter charges or other serious criminal allegations.
California Penal Code §191.5 contains separate offenses for gross vehicular manslaughter while intoxicated and vehicular manslaughter while intoxicated.
If a death occurred, see our DUI Manslaughter Defense resource for information about those charges.
DUI Accident and the DMV
A DUI arrest can also create a separate DMV proceeding involving your driving privilege.
The criminal case and DMV matter are separate proceedings. The California DMV provides an administrative hearing process for certain DUI-related license actions, with deadlines that can apply shortly after the arrest.
If you received an Order of Suspension or Revocation, pay close attention to the applicable deadline.
Learn more about California DMV hearings after a DUI.
What Evidence Can Matter in a DUI Accident Case?
Potential evidence can include:
- Police reports
- Body-camera footage
- Dash-camera footage
- Surveillance video
- 911 calls
- Witness statements
- Vehicle data
- Photographs
- Accident reconstruction
- Medical records
- Breath-test records
- Blood-test records
- Field sobriety test observations
An attorney can determine which evidence is relevant after reviewing the facts of the case.
San Jose DUI Accident Defense
If your DUI accident occurred in San Jose or Santa Clara County, the defense may need to coordinate evidence from law enforcement, medical providers, witnesses, laboratories, and other sources.
Local knowledge can be useful, but the strength of the defense ultimately depends on the evidence and applicable law.
DUI Accident Defense FAQs
Can I be charged with DUI if the accident was not my fault?
A DUI charge and responsibility for causing an accident are separate issues. The facts of the DUI investigation and collision need to be evaluated independently.
Does a DUI accident automatically become a felony?
No. The charge depends on the circumstances, including whether someone was injured, the nature of the allegations, and the defendant’s prior record. California law provides different punishment structures for DUI with injury.
What if nobody was seriously injured?
The consequences depend on the actual allegations and evidence. A collision does not necessarily transform an ordinary DUI into a felony.
What if someone died in the accident?
A fatal DUI collision can result in vehicular manslaughter or other serious charges. Penal Code §191.5 provides specific offenses involving intoxicated driving and death.
Contact a DUI Accident Defense Lawyer
If you were arrested for DUI after an accident, do not assume the collision determines the outcome of the criminal case.
Knight Justice can review the DUI investigation, chemical testing, accident evidence, and potential consequences.
Call Nana Knight at (408) 877-6177 for a case evaluation.
For general DUI representation, visit our San Jose DUI Lawyer page.
