What If I Refused a Breathalyzer Test?

 Posted on July 11, 2026 in Driving Under the Influence

Refusing a breathalyzer test in Connecticut triggers its own set of penalties. It can also affect how your DUI case plays out in court. But a refusal also means the state does not have a chemical test result to use against you. That changes the nature of the prosecution's case in ways that can actually work in your favor. If you refused a breathalyzer in 2026 and are facing charges, our Stamford, CT criminal defense lawyer can help. Attorney Daniel P. Weiner brings over 40 years of legal experience to every case. He’s committed to protecting the rights of every client he represents.

What Is Connecticut's Implied Consent Law?

When you got your Connecticut driver's license, you automatically agreed to submit to chemical testing if you were lawfully arrested for DUI. This is called implied consent under Connecticut General Statutes Section 14-227b.

If you were asked to take a breathalyzer test and you refused, the implied consent law is what determines the consequences that follow. Implied consent applies to breath tests, blood tests, and urine tests. The law kicks in after a lawful arrest, not just during a routine traffic stop. An officer cannot demand a chemical test simply because they pulled you over. There has to be a lawful arrest first.

What Will Happen After You Refuse a Breathalyzer in Connecticut?

Refusing a breathalyzer in Connecticut triggers an automatic license suspension that is handled by the DMV separately from any criminal DUI charges. The suspension period depends on whether this is your first refusal or a subsequent one.

For a first refusal, your license is suspended for 45 days. After the suspension, you are required to install an ignition interlock device on any vehicle you drive for a period of time. For a second refusal within ten years, the suspension period increases significantly, and the ignition interlock requirement is longer.

These administrative penalties happen regardless of what happens in your criminal case. Even if your DUI charges are eventually dropped or dismissed, the DMV suspension from the refusal can still stand unless you successfully challenge it.

Does Refusing a Breath Test Help or Hurt Your DUI Case in Connecticut?

Refusing a breathalyzer test does remove one significant piece of evidence from the prosecution's hands. Without a breath test result showing a specific BAC number, the state has to rely on other evidence to prove intoxication. That typically means the arresting officer's observations, field sobriety test performance if you took those, and any video footage from the stop.

Each of those pieces of evidence is more subjective and easier to challenge than a chemical test result. The officer's observations are their opinion. Field sobriety test results can be affected by many factors that have nothing to do with alcohol, and video footage does not always tell the whole story.

On the other hand, the refusal itself becomes evidence that the prosecution will try to use against you. Your attorney will need to address it directly and present a compelling explanation for why the refusal does not prove guilt.

What Defenses Are Available After a Breathalyzer Refusal?

Regardless of whether you refused the breath test or not, you have the right to challenge the charges against you. The right defense strategy will depend on the details of your case, but some common defenses include:

• Challenging whether the initial traffic stop was legally justified in the first place
• Arguing that the arrest itself was not supported by probable cause
• Presenting an innocent explanation for the refusal that does not suggest consciousness of guilt
• Challenging the credibility of the officer's observations about your appearance and behavior
• Questioning whether field sobriety tests were administered correctly if you took them
• Examining whether your constitutional rights were violated at any point during the stop or arrest

If the stop or the arrest was not legally justified, your attorney can file a motion to suppress any evidence gathered as a result. Losing that evidence can significantly damage the prosecution’s case against you.

Contact Our Fairfield County DUI Defense Attorney for a Free Consultation Today

Refusing a breathalyzer test creates its own set of challenges. However, it does not mean your case is hopeless. You need an attorney with the experience and knowledge to navigate both the administrative and criminal sides of your situation. Attorney Weiner knows exactly how to approach a DUI defense when a breathalyzer refusal is involved.

Contact the Law Offices of Daniel P. Weiner at 203-348-5846 to schedule a free consultation with our Stamford, CT criminal defense lawyer today.