I am Joel Brand, a California DUI defense attorney, and this post is for anyone who was arrested for DUI even though the car was parked, stopped, or sitting still when the police arrived. This situation comes up more often than most people expect, and the law in this area is both specific and genuinely defensible.
The Short Answer: California Requires Actual Volitional Movement
Under California Vehicle Code 23152(a), the prosecution must prove that you were "driving" a vehicle. The California Supreme Court has interpreted that word to require proof of volitional movement. In other words, the car must have physically moved at some point because of something you did. Simply sitting in a parked car with the engine running, or even sitting in the driver's seat with the keys in your hand, is not automatically enough to prove you drove. This is the foundation of what attorneys call the no-drive defense.
Why Officers Still Make Arrests in These Situations
Police officers are trained to secure the scene first and sort out the facts later. If they find you in the driver's seat, keys present, and alcohol on your breath, they have probable cause to arrest you. That arrest does not mean the charge will stick. The officer's job at the roadside is different from what the prosecutor must prove at trial. An arrest and a conviction are two very different things, and this distinction matters enormously to your defense.
Common Scenarios Where This Defense Applies
I see this issue arise in several recurring situations. You pulled over to sleep off a night out and were found hours later. You moved your car a short distance in a parking lot and then stopped. A friend drove to a location and then you switched seats. You started the engine to run the heat or air conditioning but never moved the vehicle. Each of these situations raises real questions about whether the prosecution can actually prove you drove. The sleeping-in-your-car scenario is one of the most misunderstood in California DUI law, and the no-drive defense is closely related to it.
What Evidence Prosecutors Use to Try to Prove Driving
Because direct video of you driving is often unavailable, prosecutors rely heavily on circumstantial evidence. They may point to a warm engine hood, tire marks, witness statements, GPS data from your phone, traffic camera footage, or the officer's own observations, such as seeing the vehicle in motion before it stopped. Your attorney's job is to examine every one of these sources carefully. Evidence that seems damaging at first sometimes has innocent explanations or was gathered in ways that can be challenged. A motion to suppress evidence is one tool that may apply if the officer's initial contact with you was not legally justified.
How the DMV Hearing Is Different From the Criminal Case
Your arrest triggered two separate proceedings. The criminal court requires the prosecution to prove you drove beyond a reasonable doubt. The DMV administrative hearing uses a lower standard and focuses on whether the officer had reasonable cause to believe you were driving. Even if the criminal case is dismissed or reduced, the DMV can still suspend your license. Understanding how these two processes interact is critical. The DMV hearing process has its own deadlines and rules, and you must request a hearing within ten days of your arrest or you automatically lose your right to one.
Field Sobriety Tests and the No-Drive Defense
If an officer asked you to perform field sobriety tests after finding you parked, those results become part of the prosecution's case even if the driving element is in dispute. Officers use test performance to establish impairment. Your defense attorney will analyze whether the tests were administered correctly, whether medical conditions or uneven terrain affected your performance, and whether the results are even relevant if the prosecution cannot first establish that you were driving. Impairment without proof of driving is not a DUI.
What Happens if There Was a Collision Nearby
If police responded to a crash report and then found you nearby or at a location the vehicle was traced to, the situation becomes more complicated. In collision cases, officers are sometimes permitted under Vehicle Code 40300.5 to arrest you even without witnessing you drive. Witness statements and physical evidence then become central to the prosecution's case. A DUI involving a collision carries its own set of additional concerns, and the no-drive issue may be harder to raise, though it is not impossible depending on the specific facts.
Mistakes That Can Hurt Your No-Drive Defense
The biggest mistake I see is people talking too much at the scene. If you told the officer "I just parked" or "I only moved it a little," you may have given the prosecution evidence it needs to prove movement. Anything you said can and will be used against you. Equally damaging is posting anything about the incident on social media, even something that seems harmless. Prosecutors and investigators do look at those accounts. Say as little as possible and contact an attorney before making any statements to anyone.
Can a No-Drive Argument Get the Charge Dismissed Entirely?
It can, but nothing is guaranteed. If the prosecution genuinely cannot produce sufficient evidence of volitional movement, the charge may be dismissed at the preliminary hearing stage or after a motion for judgment of acquittal at trial. In other cases the argument may support a negotiated reduction to a wet reckless or another lesser charge. The strength of the no-drive defense depends entirely on the specific facts, which is why a thorough review of the police report, dispatch records, and any available video is the first step I take in every case like this.
What to Do Right Now
Preserve everything. If there is any surveillance camera near where your car was parked, that footage may disappear within days. Write down every detail you remember about the night: where the car was, whether it moved, how long you had been parked, who else was present, and anything the officer said. Do not contact witnesses on your own. Bring all of that information to an attorney as soon as possible. The ten-day DMV deadline does not wait, and neither does the evidence.
How I Approach These Cases
Every no-drive case is fact-specific. I start by pulling the DMV discovery packet and the police report to understand exactly what the officer observed and documented. I look at the DS-367 form for any irregularities. I review chemical test results, body camera footage if available, and any prior statements. I also consider whether police mistakes at the stop create additional grounds to challenge the evidence. This careful review is how I build the strongest possible defense for each client.
If you were arrested for DUI but you were not driving when the police found you, your situation may be more defensible than you think. You can get a free written case analysis right here on this page. Call me at (888) 271-6644. I answer my own phone, 24/7. You can also read more from the DUI blog for additional information on California DUI law.