The single decision that does the most damage in a California DUI is often not how you drove or what you drank. It is refusing the chemical test. Vehicle Code 23612, the "implied consent" law, turns that refusal into its own penalty: a longer license suspension, an enhancement on the criminal case, and a fact the prosecutor gets to wave in front of the jury. I am Joel Brand, and here is exactly how the law works and where a claimed refusal can still be fought.
Vehicle Code 23612(a)(1)(A). A person who drives a motor vehicle is deemed to have given his or her consent to chemical testing of his or her blood or breath... if lawfully arrested for an offense allegedly committed in violation of Section 23140, 23152, or 23153. (a)(1)(D) The person shall be told that... failure to submit to, or the failure to complete, the required chemical testing will result in the suspension or revocation of his or her driving privilege for a period of one year to three years... and that the refusal... may be used against him or her in a court of law.
What "implied consent" actually means
By driving in California, you have already agreed, in advance, to take a breath or blood test if you are lawfully arrested for DUI. Two points people get wrong:
- The roadside handheld test is different. Before arrest, the small preliminary alcohol screening (PAS) device is usually optional for drivers 21 and over, just like the field sobriety tests. Declining those is not a refusal under 23612.
- The post-arrest test is not optional. Once you are lawfully arrested, the evidentiary breath or blood test is the one implied consent covers. Declining that is what triggers the refusal penalties. The detail in post-arrest test refusal matters.
What a refusal costs you
- A longer, harder license suspension. A first refusal is a 1-year suspension with no restricted-license option, longer than the 4-month suspension for a normal first DUI. With prior DUIs or refusals it climbs to two or three years. See the refusal suspension under VC 13353.
- A sentencing enhancement. If you are convicted of the DUI, the refusal adds mandatory extra penalties under Vehicle Code 23577, including additional jail and a longer program.
- Evidence against you. The prosecutor is allowed to argue that you refused because you knew you were over the limit.
When a "refusal" is not really a refusal
Officers write "refused" far more often than the law actually supports. A refusal only counts if everything was done right, and frequently it was not:
- The arrest was not lawful. Implied consent only applies after a lawful arrest. No probable cause, no valid refusal.
- You were never properly admonished. The officer must clearly warn you of the exact consequences of refusing. A garbled, incomplete, or skipped admonition undercuts the refusal.
- Confusion. If you were told you had a right to a lawyer (for the FSTs or otherwise) and then reasonably believed you could speak to one before the chemical test, that confusion can defeat the refusal.
- Medical inability. A genuine inability to complete a breath test (for example, a lung condition) is not a willful refusal, and the officer is supposed to offer the alternative test.
- Officer mistakes during the process. These cases turn on procedure. See common police mistakes during a refusal.
The DMV runs on its own clock
The refusal suspension is handled by the DMV separately from the court case, and the refusal allegation is something I can contest at the DMV hearing. As with any DUI, you have only 10 days from the arrest to demand that hearing. See the first 10 days after a DUI and confirm your date with the DMV hearing deadline calculator.
You get to choose breath or blood
Implied consent gives you a choice of test, and that choice has consequences worth understanding. If a breath test is offered, you are generally entitled to take it, but breath testing does not preserve a sample, so there is nothing left to retest later. A blood test does preserve a sample, which means an independent expert can re-analyze it, and a blood draw also opens the door to the chain-of-custody and storage challenges that often weaken blood results. What you cannot do is refuse to choose; declining both is treated as a refusal. If an officer offered only one type of test or mishandled the choice, that is something I examine closely.
A refusal is not an automatic loss
People who refused often assume their case is hopeless. It is not. First, the underlying DUI still has to be proven, and without a chemical number the prosecution's case on the alcohol level can actually be weaker, resting on the officer's observations and the roadside tests, both of which are highly challengeable. Second, the refusal allegation itself can be defeated on the grounds described above, and if it falls, so do the enhanced penalties that come with it. A refusal changes the strategy of the defense, but it does not remove the defense. In some cases the absence of a test number is something I can use.
Why the admonition is so often the weak point
The legal trigger for refusal penalties is the officer's admonition, the specific warning that refusing will suspend your license and can be used against you. The law requires that warning to be given clearly and completely. In the chaos of a roadside arrest, officers frequently rush it, paraphrase it, give it in a way a frightened or non-English-speaking driver cannot understand, or fail to repeat it when the driver hesitates. Because the admonition is recorded in reports and often on video, it is a concrete, reviewable event, and a defective admonition is one of the most reliable ways to defeat a claimed refusal. This is why I scrutinize exactly what was said, how, and when. See common police mistakes during a refusal.
Accused of refusing? Let's look at it.
A refusal allegation roughly doubles what is at stake, which is exactly why it deserves a careful, skeptical review of the arrest and the admonition. Use the free case analysis on this page, or call me directly at (888) 271-6644. I answer my own phone, 24/7.
From the DUI blog: Can you refuse a breathalyzer in California?.