Even while Breathalyzer tests can provide false-negative findings, they are nevertheless an essential component of a DUI arrest process, and refusing to take one can have serious legal and administrative repercussions. Refusal may result in penalties, license suspension, and maybe more serious DUI charges.
Let's examine the operation of California's implied consent statute, the part breathalyzers play in it, the potential consequences, and how you might defend yourself.
Under California’s implied consent law, every driver agrees—implicitly and unconditionally—to submit to a chemical test if suspected of DUI. Breathalyzer tests, blood draws, or even urine samples become non-negotiable after a lawful DUI arrest. Refusal? It’s not without weighty consequences. Declining to comply, whether with a breathalyzer test in California or another chemical test, triggers immediate penalties—license suspension, fines, and more—even if the DUI charge doesn’t stick.
The California DMV automatically finds you guilty and suspends your driver's license administratively if you reject a breathalyzer test. If this is your first similar infraction, you will be suspended for approximately a year; if you refuse again within ten years of the first one, you may be suspended for two or three years. These measures apply whether or not the court proves the influence of alcohol or drugs.
Additionally, the suspension may come with the following penalties:
With all the considerations taken, deciding whether to complete a breathalyzer test can still be challenging. While you may avoid incriminating yourself, test refusal can lead to even harsher penalties. However, a preliminary alcohol screening (PAS) administered at the roadside can be refused without penalty if you are over 21, not on DUI probation, and there is no probable cause involved. Still, once arrested, refusal of a urine, breath, or blood test can complicate your situation significantly.
Refusing a breathalyzer test in California can be treated as an aggravating factor during the DUI case. Prosecutor may claim your refusal implies guilt, leading to additional penalties such as:
The refusal of a breathalyzer test does not invalidate the DUI conviction since officers can use alternative evidence, such as their own observations, the results of field sobriety tests, or a blood alcohol content test obtained with a warrant.
If you have already made the decision to refuse the breath test, here are a few immediate things you need to do to protect yourself:
While you have the right to refuse a breathalyzer, doing so is not often the best decision for your legal case, as it only complicates it. The prosecutor can use your refusal as an unsaid admission of fault; the penalties will almost surely be higher, and you may be additionally judged for your refusal. In some cases, the consequences of refusing the test may be even harsher than submitting to it and later contesting the results in court. Make sure to consult a DUI attorney to make the whole legal process as smooth as possible.
If you’re facing a California DUI stop and are asked to take a breathalyzer test, act fast—contact My Rights Law. Our skilled attorneys stand ready to shield your rights from the initial traffic stop all the way to case resolution and beyond. Need help understanding California DUI laws? Call us at (909) 340-2000, and let us guide you with precision and care.
While we don’t advocate for it lightly, there are moments when refusing a breathalyzer test could be a strategic choice. We’ll help you recognize these scenarios and fiercely protect your constitutional rights. One call is all it takes to gain the confidence that comes from knowing your case is handled by seasoned professionals.
Yes, but only if you’re over 21, after passing a field sobriety test, and if have no escalating circumstances or probable cause.
It may serve as indirect evidence of guilt or result in more severe penalties and fines.
This page was written by the My Rights Law Editorial Team and reviewed for legal accuracy by Bobby Shamuilian.
Attorney Shamuilian is the founder and managing partner of My Rights Law and is widely recognized as a legal authority, frequently appearing as a legal analyst and TV pundit on national news outlets.
He has earned a perfect “10.0 – Top Attorney” rating on AVVO and a “10.0” rating on Justia, and has been named among the “Top 40 Under 40” and the “Top 100 Trial Lawyers” by The National Trial Lawyers.
With his proven expertise and dedication, Mr. Shamuilian is committed to protecting your rights and achieving the best possible outcome for your case.
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