Maybe you were stopped on I-80 outside Laramie, pulled over after leaving a downtown restaurant, or questioned after a game day drive near the University of Wyoming. Then the officer asked for a breath test, and now you are replaying the moment, wondering: Could you have said no? Can you refuse a breathalyzer in Wyoming?
The short answer is that, although you can choose not to cooperate, Wyoming’s implied consent law allows refusal to carry significant legal consequences and, in some circumstances, may not prevent chemical testing.
Is a Roadside Breath Test the Same as a Chemical Test?
No. When people say “breathalyzer,” they may mean different things. A portable roadside breath test during a traffic stop is different from the formal chemical test requested after a DUI arrest. You are not required to submit to a portable breath test at the scene of a traffic stop, and have the right to refuse to submit to such a test without suffering the legal consequences referenced above.
A DUI investigation may include several kinds of evidence:
- Officer observations of driving, speech, balance, odor of alcohol, or behavior;
- Field sobriety tests;
- A roadside breath screening device;
- A formal breath test after arrest;
- A blood or urine test;
- Body camera or patrol video; and
- Statements made during the stop or booking process.
This difference matters because legal consequences usually center on the chemical test requested under Wyoming’s implied consent law, not every question or screening tool used during the stop.
What Does Wyoming’s Implied Consent Law Mean?
Implied consent means that by driving or being in actual physical control of a motor vehicle on a public street or highway in Wyoming, you are deemed to have consented to chemical testing after a lawful DUI arrest.
Under Wyoming’s chemical testing law, the test must be connected to a lawful arrest, given promptly after arrest, and directed by an officer with probable cause to believe the person was driving or in actual physical control while under the influence.
The officer may direct a breath, blood, or urine test. If the officer chooses blood or urine testing, the person may choose either. However, that choice may not apply if the officer has probable cause to believe impairment involves a controlled substance that a breath test cannot detect.
Does Refusing Stop the Officer from Getting Evidence?
No, not necessarily. A refusal does not always end the investigation. Wyoming law allows an officer to request a search warrant for chemical testing after a refusal. If a judge issues the warrant, testing may proceed even if the person refuses.
Many drivers overlook this fact: refusing does not necessarily prevent the State from obtaining a test result. It may result in a warrant, a subsequent blood draw, and legal challenges regarding the warrant, timing, and validity of the testing process. Refusing does, however, place the burden on the officer to obtain that warrant and conduct the search legally without the benefit of your consent.
What Happens to Your License After a Breath or Blood Test?
License consequences can occur before a criminal case concludes. If a chemical test indicates an alcohol level of 0.08% or higher, the officer must report the result to the Wyoming Department of Transportation, which may then suspend the individual’s license or driving privileges for 90 days.
The notice generally gives the driver 20 days to request a hearing. If the driver misses that deadline, the suspension may begin automatically 30 days after the notice date or upon the end of any existing suspension or revocation.
This is separate from the DUI charge in court. You may have one deadline with the court and another with WYDOT. Do not assume that appearing in court protects your driver’s license.
Can Refusal Be Used Against You in the DUI Case?
It may be part of the case, depending on the facts. Prosecutors often view refusal as one piece of the larger story, especially if the State also has video, driving observations, field sobriety tests, statements, or warrant-based chemical test results.
A refusal does not prove guilt by itself. But it can shape how the State argues the case and how the defense responds. That is why the question is not simply, “Did you refuse?” The better question is, “What happened before, during, and after the request for testing?”
How Can a Lawyer Challenge a Refusal or Test?
A DUI attorney can examine whether the refusal and any chemical test were handled legally. The review should start with the stop, not just the test result. Depending on the facts, a defense may examine:
- Why the officer made the traffic stop;
- Whether probable cause supported the DUI arrest;
- Whether the officer gave a proper implied consent advisement;
- Whether the testing request and alleged refusal were clear;
- Whether a warrant was properly requested and issued;
- Whether equipment used to administer the test had been properly calibrated;
- Whether blood, breath, or urine testing followed the required procedures; and
- Whether medical issues, confusion, language barriers, or other factors affected cooperation.
Not every issue changes the outcome. Refusal cases often turn on procedure, timing, wording, and whether the State can prove each step rather than rely on assumptions.
Need Help After Refusing a Breath Test in Wyoming?
Rogers & Garvie, LLC is based in Laramie and represents people charged with DUI across Wyoming. We meet with clients in person, by phone, and remotely, which matters when a stop in Albany County, Cheyenne, Casper, or another Wyoming community creates both court and license problems.
Our firm brings together two Wyoming-trained attorneys with practical litigation experience. Thomas Garvie has defended misdemeanor and felony cases and tried cases to verdict, while Grant Rogers adds experience from private practice, judicial internships, and government service. Together, we help clients understand the case, deadlines, and defense issues worth challenging.
If you refused a breathalyzer, submitted to chemical testing, or were tested under a warrant, contact Rogers & Garvie. We can help to identify deadlines, review the stop, evaluate the warrant or testing process, and decide what to challenge first.
FAQs About Breathalyzer Refusals in Wyoming
Can Police Force a Blood Test After I Refuse a Breathalyzer in Wyoming?
They may be able to obtain a warrant for chemical testing after refusal. Whether the test can be challenged depends on the arrest, probable cause, warrant process, timing, and testing method.
Is Refusing Better Than Taking the Breath Test?
Not necessarily. Refusal may not stop testing, and it can create its own problems in the case. The better question is whether the stop, arrest, advisement, warrant, and test result can be challenged.
What If I Asked Questions Instead of Clearly Refusing?
That detail may matter. Confusion, unclear instructions, medical issues, language barriers, or asking to speak with a lawyer may affect how the refusal is interpreted, depending on the facts.