California distinguishes between a roadside preliminary breath test requested during a DUI investigation and an evidentiary chemical test requested after a lawful arrest.
That distinction is important. Although many adult drivers may decline a pre-arrest preliminary alcohol screening test, refusing or failing to complete a required post-arrest chemical test can result in a lengthy driver’s-license suspension or revocation and additional consequences in the criminal case.
A refusal allegation is not automatically valid. The officer must follow specific procedures, and the evidence must establish that the driver willfully refused or failed to complete a legally required test.
What Is California’s Implied-Consent Law?
California Vehicle Code section 23612 provides that a person who drives a motor vehicle is deemed to have consented to chemical testing after being lawfully arrested for an alleged DUI offense.
For an alcohol-related arrest, the law generally addresses testing of the person’s:
- Breath; or
- Blood.
When drugs are suspected, a blood test may be required. A urine test is generally reserved for circumstances in which blood or breath testing is unavailable, or when specified medical conditions prevent a blood test.
Implied consent does not mean that law enforcement can conduct every test under every circumstance without regard to constitutional protections. It means that refusing a qualifying post-arrest test can produce administrative and criminal consequences.
Roadside Breath Tests and Post-Arrest Chemical Tests Are Different
The phrase “breath test” can refer to two different procedures.
Preliminary alcohol screening test
A preliminary alcohol screening test, commonly called a PAS test, is usually administered with a handheld device before an arrest. It is used to help the officer determine whether there is probable cause to make a DUI arrest.
For a driver who is at least 21 and not on DUI probation, a pre-arrest PAS test is generally treated as an additional field sobriety test. Different rules apply to:
- Drivers under 21;
- People on DUI probation; and
- Certain commercial-driving situations.
Post-arrest evidentiary test
After a lawful DUI arrest, the driver is generally required to submit to and complete an evidentiary chemical test under California’s implied-consent law.
Taking a roadside PAS test ordinarily does not eliminate the obligation to complete a post-arrest chemical test.
Whether a particular test was preliminary or evidentiary depends on the circumstances, including when it was requested, what the officer communicated, and the type of device used.
What Must the Officer Explain?
Before treating a driver’s conduct as a refusal, the officer generally must advise the person that:
- The driver is required to submit to a chemical test;
- Refusing or failing to complete the test will result in license suspension or revocation;
- A refusal may be used against the driver in court; and
- A refusal may result in increased criminal penalties if the driver is convicted of DUI.
The wording and clarity of the admonition can become important. A confusing, incomplete, contradictory, or misleading warning may provide grounds to contest a refusal allegation.
Body-camera recordings, dashboard-camera footage, audio recordings, and written reports should be examined to determine precisely what the officer said and how the driver responded.
What Conduct Can Be Treated as a Refusal?
A refusal does not always involve someone expressly saying “no.”
The following conduct may be characterized as a refusal:
- Declining every available test
- Failing to choose between properly offered tests
- Remaining silent in response to repeated requests
- Agreeing but deliberately failing to provide an adequate sample
- Stopping before the test is complete
- Conditioning consent on speaking with an attorney
- Insisting that a personal physician be present
- Agreeing only if law enforcement accepts conditions not required by law
- Delaying the test in a manner interpreted as noncooperation
- Refusing an alternative test after being physically unable to complete the first one
Whether the conduct amounted to a willful refusal depends on the complete circumstances. Confusion, language barriers, medical problems, conflicting instructions, or physical inability may affect the analysis.
Can You Speak With an Attorney Before Deciding?
A driver generally does not have a right to delay the chemical-test decision until after consulting an attorney.
A statement such as “I will not take the test until I speak with my lawyer” may be treated as a conditional refusal.
This does not eliminate the right to counsel in the criminal case. It means that the implied-consent decision ordinarily must be made when the officer requests the test.
Confusion can arise when Miranda rights and the chemical-test admonition are given close together. A driver may believe that the right to remain silent or request counsel applies to the chemical-test decision. If the officer fails to clarify that confusion, it may become relevant at the DMV hearing or in court.
What If the Driver Cannot Complete the Test?
Physical inability is different from deliberate noncooperation.
A person may be unable to provide an adequate breath sample because of:
- Asthma
- Chronic obstructive pulmonary disease
- Reduced lung capacity
- A respiratory illness
- Chest or facial injuries
- Panic or acute medical distress
- Equipment malfunction
When a person genuinely cannot complete one test, an alternative test may be required. Refusing the available alternative can still be treated as a refusal.
Drivers with hemophilia or a heart condition requiring anticoagulant medication may be exempt from a blood test under specified circumstances, but they are not necessarily exempt from chemical testing altogether.
Medical records, witness testimony, video, and the testing device’s data may help distinguish physical inability from willful refusal.
What If the Driver Was Injured or Unconscious?
An injury or medical emergency may affect whether a person was capable of making a meaningful choice.
Relevant circumstances may include:
- Head trauma
- Stroke
- Seizure
- Diabetic emergency
- Shock
- Loss of consciousness
- Medication administered by emergency personnel
- Cognitive or communication impairment
Incapacity caused by a medical condition unrelated to voluntary alcohol or drug use may provide a basis to challenge an alleged refusal.
Incapacity resulting from voluntary intoxication generally does not excuse compliance under the implied-consent rules.
Can Police Obtain a Blood Sample After a Refusal?
A forced or nonconsensual blood draw raises Fourth Amendment issues.
Law enforcement may seek a search warrant authorizing a blood draw. A warrantless blood draw may also be argued to be lawful when a recognized exception to the warrant requirement applies, such as a genuine exigency.
The natural dissipation of alcohol in the bloodstream does not, by itself, automatically justify every warrantless blood draw. The legality of a particular draw depends on the complete circumstances.
Obtaining a blood sample after an alleged refusal does not necessarily eliminate the refusal allegation. The DMV and criminal court may still consider whether the driver voluntarily submitted when law enforcement initially requested the test.
DMV Consequences of a Chemical-Test Refusal
A refusal triggers an Administrative Per Se license action that is separate from the criminal prosecution.
For a driver age 21 or older, the California DMV currently identifies the following refusal periods:
- First offense within 10 years: One-year suspension
- Second offense within 10 years: Two-year revocation
- Third or subsequent offense within 10 years: Three-year revocation
Different or additional rules can apply to drivers under 21 or people on DUI probation.
These periods are more severe than the standard administrative suspension for a first non-refusal BAC case. Restricted-license options may also be substantially limited following a refusal.
The California DMV’s official DUI guidance provides the current administrative periods.
The 10-Day DMV Hearing Deadline
A driver generally has only 10 days after receiving the suspension or revocation order to request a DMV hearing.
A timely request can provide an opportunity to contest the refusal action and may postpone the effective suspension or revocation while the matter is pending. The precise effect should be confirmed when the hearing is requested.
The DMV hearing is separate from the criminal case. The hearing officer may consider whether:
- The officer had reasonable cause to believe the person was driving in violation of California’s DUI laws;
- The person was lawfully arrested;
- The driver received the required refusal warning; and
- The driver willfully refused or failed to complete the requested chemical test.
Missing the deadline may waive the ordinary right to an administrative hearing.
Criminal Consequences of a Refusal
A refusal can also affect the criminal DUI case.
If the prosecution proves the required refusal allegation and the defendant is convicted, possible consequences may include:
- Additional county-jail time;
- A longer DUI education program;
- Use of the refusal as evidence suggesting consciousness of guilt; and
- More difficult negotiations with the prosecutor.
The California Judicial Council’s criminal jury instructions recognize that a refusal may be considered by a jury, but the prosecution retains the burden of proving the relevant issues. Silence can qualify as a refusal in some circumstances, although the jury must determine what the conduct meant.
A person may still be convicted of DUI without a chemical-test result. The prosecution may rely on:
- Driving behavior
- Witness testimony
- Field sobriety exercises
- Statements
- Body-camera footage
- Collision evidence
- Physical symptoms
- Other circumstantial evidence
Conversely, the absence of a reliable chemical test can affect the prosecution’s ability to prove the case.
Does Dismissal of the DUI Automatically End the DMV Action?
Not necessarily.
The DMV case and criminal prosecution use different procedures and burdens of proof. A prosecutor’s decision not to file charges, a dismissal, a reduction to a lesser offense, or an acquittal does not always automatically cancel a refusal-based license action.
Some criminal dispositions may provide grounds to seek further DMV review. The effect depends on why the criminal case ended and what the court actually decided.
The driver should not assume that a plea to a lesser charge automatically restores driving privileges.
Potential Defenses to a Refusal Allegation
The available defenses depend on the evidence.
The stop or arrest was unlawful
Implied-consent consequences generally depend on a lawful DUI arrest. A stop without reasonable suspicion or an arrest without probable cause may affect the refusal allegation.
The officer did not provide the required warning
The officer must advise the driver of the consequences of refusal. Missing or materially defective warnings may undermine the administrative action or sentencing allegation.
The admonition was confusing
Ambiguous language, contradictory instructions, poor translation, or confusion created by Miranda warnings may affect whether the refusal was knowing and willful.
The driver did not actually refuse
Recordings may show that the driver agreed, attempted to cooperate, asked a reasonable clarifying question, or was not given an adequate opportunity to complete the test.
The driver was physically unable to complete the test
A documented medical condition or injury may explain an insufficient breath sample or inability to complete a particular procedure.
No appropriate alternative was offered
When a driver genuinely cannot complete the selected test, the circumstances may require offering an available alternative.
The refusal was attributed to the wrong person or event
Reports sometimes contain inaccuracies about timing, statements, testing attempts, or which officer gave the admonition. Recordings and device logs may contradict the written report.
Evidence That Should Be Preserved
A refusal case may turn on what occurred during a brief conversation following the arrest. Important evidence can include:
- Body-worn camera recordings
- Patrol-car video and audio
- Station or hospital surveillance
- Dispatch recordings
- The refusal-admonition form
- Breath-device logs
- Blood-draw records
- Medical and ambulance records
- Jail intake documentation
- Interpreter information
- Witness statements
- The officer’s training and testing records
Because recordings may be overwritten under agency retention policies, preservation requests should be considered promptly.
What Should You Do After a Refusal Allegation?
Practical steps include:
- Read the suspension or revocation order immediately.
- Calendar the 10-day DMV hearing deadline.
- Preserve the temporary license and all paperwork.
- Write down the officer’s exact instructions as accurately as possible.
- Identify any medical, language, or communication issues.
- Preserve witness information and available recordings.
- Do not drive after the temporary privilege expires unless the DMV confirms that driving is authorized.
- Obtain legal advice addressing both the DMV proceeding and criminal case.
Contact McGinity Law Office
A chemical-test refusal can cause serious license consequences even before the criminal DUI case is resolved. Whether the allegation is valid may depend on the lawfulness of the arrest, the warning provided, the driver’s response, medical circumstances, and recordings of the incident.
Contact McGinity Law Office to discuss the DMV deadline, refusal allegation, criminal charges, and available defenses.
Brian D. McGinity
California State Bar No. 212891
McGinity Law Office
Phone: 530-513-6836
Website: www.bmcglaw.com
This article provides general information about California law and does not constitute legal advice. Reading it or contacting McGinity Law Office does not, by itself, establish an attorney-client relationship. Chemical-test and licensing rules depend on the individual facts, offense date, driving record, and DMV status. Past results do not guarantee a similar outcome.