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DUI Chemical Test Refusal
Refusing a chemical test in California carries automatic, severe consequences — but it's not the end of your case. Refusal cases can be defended.
California\'s implied consent law (VC 13353)
By driving in California, you are deemed to have consented to chemical testing if lawfully arrested for DUI. Refusal triggers immediate license penalties.
Penalties for refusal
- First refusal: 1-year hard license suspension (no IID workaround)
- Second refusal in 10 years: 2-year revocation
- Third refusal in 10 years: 3-year revocation
- Used as evidence of "consciousness of guilt" at criminal trial
- Mandatory longer DUI school if convicted
- Additional 48 hours jail (first), 96 hours (second)
The proper admonishment
Before deeming you a refusal, the officer must:
- Inform you that California law requires you to submit to chemical testing
- Inform you of the specific consequences of refusal (1-year suspension, etc.)
- Give you a choice between breath and blood
- Wait for a clear refusal — not silence, not confusion
If any step is missed, the refusal allegation fails.
Common refusal defenses
1. Improper admonishment
Officer didn\'t fully read the implied consent admonishment, mumbled it, or rushed through it.
2. Medical inability
Asthma, COPD, anxiety, or other conditions that prevent providing a sufficient breath sample. The blood option must be offered.
3. Language barrier
If the officer admonished in English to a non-English-speaking suspect without an interpreter, the "refusal" may not be a knowing, voluntary refusal.
4. No probable cause for the arrest
If the underlying DUI arrest was unlawful, the refusal allegation falls with it.
5. Confusion / silence is not refusal
The officer must wait for a clear, unambiguous refusal. Silence, repeated questions, or attempts to call a lawyer are not refusals.
The DMV hearing for refusal
The 10-day rule still applies — request the APS hearing within 10 days of arrest. The DMV hearing officer must find: (1) probable cause for the DUI arrest, (2) a lawful arrest, (3) proper admonishment, and (4) a knowing refusal. Defeat any element and the suspension is set aside.
Refusal cases require experienced defense. Contact our office immediately.
Frequently Asked Questions
What happens if I refuse a chemical test for DUI in California?
Your license is automatically suspended for 1 year (first refusal), 2 years (second), or 3 years (third) under California's implied consent law (VC 13353). The refusal can also be used as evidence of consciousness of guilt at criminal trial. There is no IID workaround — the suspension is "hard."
Can I refuse a breathalyzer at a DUI stop?
Before arrest, yes — you can refuse the preliminary alcohol screening (PAS) device if you are 21+ and not on DUI probation. After arrest, no — you must submit to chemical testing or face the refusal penalties.
Are there defenses to a refusal allegation?
Yes. Common defenses: officer didn't properly admonish you about consequences, medical inability to provide breath sample, language barrier (you didn't understand the admonishment), no probable cause for the underlying arrest. A successful defense restores your license.
Should I refuse the chemical test?
Generally no. Refusal triggers automatic 1-year suspension with no IID workaround, AND the prosecution still gets to argue consciousness of guilt at trial. You give up your only defense (challenging the test result) and gain nothing. Submit to the test, then fight it later.
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