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sam@gellerlawsf.com
DUI Manslaughter Lawyer Walnut Creek
Walnut Creek defense fighting serious DUI charges.
Working With a Walnut Creek DUI Manslaughter Lawyer You Can Trust to Build Your Case
DUI manslaughter is one of the most serious charges in California. When someone dies in a crash, and a driver is alleged to have been impaired, the legal consequences can include years in state prison. At Geller Law, PC, we defend clients facing these charges in Walnut Creek and across Contra Costa County.
California charges DUI manslaughter under Penal Code § 191.5. There are two forms — one tied to gross negligence and one to ordinary negligence. The gross negligence version carries a sentence of up to 10 years in state prison. Ordinary negligence may be charged as a felony or a misdemeanor. Which charge applies shapes everything that follows.
The pressure in these cases is real. Police, prosecutors, and crash analysts begin building a case fast. Evidence gets locked in early.
The charge on the table, your prior record, and the facts of the crash all carry weight from day one. However, an experienced DUI manslaughter lawyer in Walnut Creek can review what the prosecution has, identify gaps in their case, and push back hard when the evidence falls short.
PRACTICE AREAS
How Geller Law Defends DUI Manslaughter Cases in Walnut Creek
A DUI manslaughter charge demands an immediate, focused defense. At Geller Law, PC, our first step is a thorough review of all evidence related to your case. That means looking hard at the crash data, the blood alcohol results, and how police handled the scene.
Blood alcohol testing is not foolproof. Breathalyzers can be miscalibrated. Blood samples can be improperly stored or handled. We look for these flaws because they can shift or even break the prosecution’s case.
Accident reconstruction is another key area. Prosecutors rely on professionals to say your driving caused the death. We are prepared to review those findings closely.
Road conditions, mechanical issues, and other drivers’ actions can all play a role, and the prosecution has to prove that your conduct, not something else, led to the fatal outcome.
We also look at how law enforcement gathered evidence. If your rights under California law were violated during a stop or arrest, that evidence may not be usable. A rights violation can change the direction of the entire case.
Furthermore, charges under Penal Code § 191.5 often hinge on the level of negligence alleged. Gross negligence and ordinary negligence carry very different penalties. Geller Law challenges whether the facts support the higher charge and seeks a reduction wherever the evidence allows.
If you have a prior DUI on your record, the stakes rise further.
We factor your full history into the strategy from day one. The goal is to find every weak point in the prosecution’s case and press it hard.
Why Walnut Creek Defendants Choose Geller Law
Geller Law brings focused DUI manslaughter defense experience to clients in Walnut Creek and Contra Costa County. We do this by combining direct attorney involvement, thorough knowledge of California law, and familiarity with local courts.
Here is what sets Geller Law apart:
Nationally Recognized, Award-Winning Defense
Attorney Sam Geller’s courtroom success has secured him spots on the Super Lawyers Rising Stars and The National Trial Lawyers: Top 40 Under 40 rosters. His deep experience in complex cases is backed by the National Academy of Criminal Defense Attorneys (NACDA). These distinctions offer Walnut Creek defendants award-winning representation they can rely on.
Sam Geller Leads Every Case
Attorney Sam Geller handles each case directly. You won’t be passed to a junior attorney or a paralegal. Sam brings high-stakes courtroom experience to every client, and that matters most when the charge carries serious prison time.
Experience in DUI Defense
One of Geller Law’s primary focuses is DUI defense. That focus runs deep. From standard DUI stops to complex vehicular manslaughter cases, Sam has experience with California prosecution strategies, effective defense arguments, and which arguments have an impact in court.
Walnut Creek and Contra Costa County Courts
Geller Law serves clients across Contra Costa County, including Walnut Creek. Sam knows the local courts, local prosecutors, and how these cases are handled in this jurisdiction. That local knowledge shapes every defense decision.
Serious Felony Defense Is Core Work
DUI manslaughter is one of the most serious charges in California criminal law. Geller Law regularly handles felonies, manslaughter charges, and serious criminal cases — not as a side practice, but as core work. That depth shows when it counts.
What Happens After a DUI Manslaughter Arrest in Contra Costa County
A DUI manslaughter case in California moves through several stages.
Each stage has its own deadline, risks, and decisions. Knowing what comes next helps you stay ahead of the process.
Stage 1: Arrest and Booking (Day 1–3)
After an arrest in Walnut Creek, you are booked into the Martinez Detention Facility (MDF), which serves as the central intake hub for Contra Costa County. Police collect blood or breath samples. They write their reports.
You have very little time to act. A lawyer can step in right away to review the arrest itself: how the stop happened, how samples were taken, and whether your rights were honored at every step.
Stage 2: Arraignment (Within 2–3 Days of Arrest)
Your arraignment is your first court date. It takes place at the Superior Court of California, County of Contra Costa. The judge reads the charges and asks for your plea.
Most clients plead not guilty at this stage. That is normal. Your lawyer files any early motions and begins pushing for discovery: the evidence the prosecution plans to use.
Stage 3: Preliminary Hearing and Pre-Trial Motions (Weeks 3–12)
This is where the case really begins. The prosecution has to show there is enough evidence to go to trial. Your attorney challenges that showing.
Key evidence is examined, including blood test results, accident reconstruction reports, and officer testimony. Motions to suppress flawed evidence can be filed here. A successful motion can weaken or even significantly undermine the prosecution’s case before trial begins.
Stage 4: Plea Negotiations or Trial Preparation (Months 3–9)
DUI manslaughter cases in Contra Costa County do not always go to trial. Plea deals happen when the evidence on both sides is weighed. Your lawyer lays out the weaknesses in the prosecution’s case and uses them at the table.
If a deal does not serve your interests, trial preparation begins in full. That means lining up professional witnesses, preparing cross-examinations, and building a defense theory the jury can follow.
Stage 5: Trial and Sentencing (Months 9–18 or More)
If the case goes to trial at Contra Costa County Superior Court, a jury decides the outcome. Trial in a gross vehicular manslaughter while intoxicated case under California Penal Code § 191.5 can last days or weeks. If there is a conviction, sentencing follows.
In California, DUI manslaughter can be treated as a misdemeanor or a felony. Penalties range from up to a year in county jail to 15 years to life in state prison. You could also face fines of up to $10,000 and a mandatory license suspension of 1 to 3 years.
Even at sentencing, there is work to do: arguing for the lowest term, presenting mitigating factors, and protecting your future as much as the law allows.
Talk to a DUI Manslaughter Lawyer in Walnut Creek Today
Your next move matters. A DUI manslaughter charge in Contra Costa County carries life-changing consequences, and time works against you. The sooner you reach out, the more we can do.
At Geller Law, we offer free initial consultations. We listen to the facts, explain your options, and tell you exactly where you stand. No pressure. No vague answers.
Call us or reach out online. We’re ready to respond promptly.
Frequently Asked Questions
1. Can I be charged with DUI manslaughter if my blood alcohol level was below 0.08%?
Yes, California law does not require a BAC of 0.08% or higher to file a DUI manslaughter charge. Prosecutors may use other evidence, such as drug impairment or erratic driving, to support the charge.
2. How long do prosecutors have to file DUI manslaughter charges against me?
In California, felony DUI manslaughter carries a six-year statute of limitations, though serious cases are often filed within days of the crash. The clock typically starts from the date of the incident, so delays in filing do not mean charges won’t come.
3. Will I lose my driver’s license if I’m charged with DUI manslaughter in Contra Costa County?
A charge alone does not automatically trigger a license suspension, but the DMV may act on its own once it receives notice of the arrest. Your criminal case and any DMV action run on separate tracks, each with its own deadlines.
4. Does it matter if the other driver was also at fault in the crash?
Shared fault by another driver can be relevant to your defense, since prosecutors have to prove your conduct caused the death. This is a fact-specific question that depends on the crash evidence and how each driver’s actions contributed.
5. What happens if I was previously charged with a DUI but never convicted?
A prior charge without a conviction generally carries less weight than a prior conviction, but it may still surface during the case. How it affects your situation depends on the details of that prior matter and how the prosecution uses it.