If you only remember one point about refusing a breathalyzer in Connecticut, remember this: A first refusal typically yields a 45-day license suspension followed by a period of ignition-interlock restricted driving; longer suspensions apply with prior offenses, administered by DMV after an opportunity for hearing. Refusal is mainly administrative but can affect criminal sentencing and pretrial conditions. Birchfield permits criminal penalties for breath refusal; blood testing for criminal punishment generally needs a warrant. Procedure, examples, and the opinions below hang off Conn. Gen. Stat. § 14-227b. Connecticut drivers consent to chemical alcohol testing when arrested for operating under the influence. Officers must inform the driver of the administrative license consequences of refusal under § 14-227b.
Criminal consequences of refusal
Refusal is mainly administrative but can affect criminal sentencing and pretrial conditions. Birchfield permits criminal penalties for breath refusal; blood testing for criminal punishment generally needs a warrant.
Under Birchfield v. North Dakota, the Fourth Amendment allows criminal penalties for refusing a warrantless breath test incident to a lawful DUI arrest, but generally requires a warrant (or a recognized exception) before the State may impose criminal penalties for refusing a blood draw. Missouri v. McNeely rejected a per-se exigency based solely on natural dissipation of alcohol in the blood. Connecticut statutes and case law implement those federal baselines with local detail.
Walking through Connecticut facts
Use this walkthrough to see which Connecticut authority does the work at each step.
A driver is arrested for DUI in Connecticut and refuses the evidentiary chemical test after the implied-consent advisory.
- Identify the administrative consequence under Conn. Gen. Stat. § 14-227b: A first refusal typically yields a 45-day license suspension followed by a period of ignition-interlock restricted driving; longer suspensions apply with prior offenses, administered by DMV after an opportunity for hearing.
- Separate that track from the criminal case: Refusal is mainly administrative but can affect criminal sentencing and pretrial conditions. Birchfield permits criminal penalties for breath refusal; blood testing for criminal punishment generally needs a warrant.
- Ask whether the refusal can be argued to the jury: Refusal evidence is admissible in the OUI prosecution.
- If the request is for blood rather than breath, apply the warrant rule: Breath testing is standard at booking; blood draws are used with consent, a warrant, or recognized exceptions, particularly when drugs are suspected or breath testing is unavailable.
In Connecticut the refusal question is answered first by Conn. Gen. Stat. § 14-227b, then by the administrative deadline and the criminal case.
Can refusal be used as evidence?
Refusal evidence is admissible in the OUI prosecution.
Prosecutors often argue consciousness of guilt; defense counsel emphasize confusion, inadequate advisories, or medical inability to provide a sample. The precise jury instruction language is state-specific — search Connecticut opinions for “refusal” and “implied consent.”
Breath tests versus blood tests
Breath testing is standard at booking; blood draws are used with consent, a warrant, or recognized exceptions, particularly when drugs are suspected or breath testing is unavailable.
Practical tip: a driver who refuses breath may still face a warrant-backed blood draw. Refusal does not create a permanent shield against chemical evidence; it mainly adds administrative (and sometimes criminal) consequences on top of the underlying DUI case.
Practical tips
- Ask whether the stop and arrest were lawful — implied consent usually requires a lawful DUI arrest first.
- Diary the administrative hearing deadline immediately.
- Do not confuse portable roadside breath screens with the evidentiary breathalyzer at the station; statutes often treat them differently.
- Research Connecticut opinions on implied consent, refusal, and license revocation in LawDiver before a contested DMV hearing.
Case law: implied consent and refusal in Connecticut
Jay F. Clark v. Benjamin Muzio, Commissioner of the Department of Motor Vehicles
…sed to submit to such test.” The legislative history of the implied consent statute does not support the plaintiffs claim. Section 4 (b) of Public Acts 1982, No. 82-408, which provided for a ninety day suspension for a refusal to submit to testing, expressly required the arresting officer to inform the operator of the duration of the statutory suspension. Section 2 of Public Ac…
On implied consent / breathalyzer refusal, Jay F. Clark v. Benjamin Muzio, Commissioner of the Department of Motor Vehicles speaks to the Connecticut dispute in this passage: "The legislative history of the implied consent statute does not support the plaintiffs claim. Section 4 (b) of Public Acts 1982, No." The surrounding opinion shows how the court applied that language to the record.
David Dorman v. Lawrence F. Delponte, Commissioner of Motor Vehicles
David Dorman v. Lawrence F. Delponte, Commissioner of Motor Vehicles, 41 Conn. Super. Ct. 437 (1990)
…t was February 7,1990, so the suspension was based upon the implied consent law, General Statutes § 14-227b, as amended by § 1 of Public Acts 1989, No. 89-314, effective January 1, 1990. Subsection (a) of § 14-227b provides that any person operating a motor vehicle in this state is deemed to have given his consent to a chemical analysis of his blood, breath or urine. Subsection…
Practitioners open David Dorman v. Lawrence F. Delponte, Commissioner of Motor Vehicles when Connecticut implied consent / breathalyzer refusal turns on the distinction in this sentence: "February 7,1990, so the suspension was based upon the implied consent law, General Statutes § 14-227b, as amended by § 1 of Public Acts 1989, No. 89-314, effective January 1, 1990." Do not lift it out of the facts the court was deciding.
State of Connecticut v. John Towry
State of Connecticut v. John Towry, 26 Conn. Super. Ct. 35 (1965)
…as part of Public Act No. 616, entitled “An Act concerning Implied Consent to Tests for Intoxication.” Both sections are interrelated and they give rise to two separate and distinct proceedings, one dealing with criminal procedure and the other dealing with revocation of license. Section 14-227a declares it a crime to operate a motor vehicle while under the influence of intoxi…
Practitioners open State of Connecticut v. John Towry when Connecticut implied consent / breathalyzer refusal turns on the distinction in this sentence: "Public Act No. 616, entitled “An Act concerning Implied Consent to Tests for Intoxication.” Both sections are interrelated and they give rise to two separate and distinct proceedings, one dealing with criminal procedure and the other dealing with revocation of license." Do not lift it out of the facts the court was deciding.
Gregory M. Field v. Louis S. Goldberg, Commissioner of Motor Vehicles.
…rating motor vehicles would do violence to the principle of implied consent. . . . Third, even barring constitutional problems, we are unwilling to conclude that the legislature intended to authorize the suspension of drivers’ licenses based on the fruits of illegal arrests. The requirements of an arrest and reasonable cause are for the purpose of protecting the motorist agains…
Practitioners open Gregory M. Field v. Louis S. Goldberg, Commissioner of Motor Vehicles. when Connecticut implied consent / breathalyzer refusal turns on the distinction in this sentence: "Third, even barring constitutional problems, we are unwilling to conclude that the legislature intended to authorize the suspension of drivers’ licenses based on the fruits of illegal arrests." Do not lift it out of the facts the court was deciding.
THEODORE PAQUETTE v. NANCY L. HADLEY, COMMISSIONER OF MOTOR VEHICLES
THEODORE PAQUETTE v. NANCY L. HADLEY, COMMISSIONER OF MOTOR VEHICLES, 45 Conn. App. 577 (1997)
…dvised of the mandatory alcohol testing requirements of the implied consent law.4 The officer completed a police report, including an A-44 report form,5 indicating that the plaintiff refused to be tested for his blood alcohol content. The plaintiff requested an administrative hearing. After the hearing, the hearing officer determined affirmatively, pursuant to § 14-227b (f),6 t…
Connecticut opinions such as THEODORE PAQUETTE v. NANCY L. HADLEY, COMMISSIONER OF MOTOR VEHICLES are cited where implied consent / breathalyzer refusal is disputed. The court stated: "The officer completed a police report, including an A-44 report form,5 indicating that the plaintiff refused to be tested for his blood alcohol content. The plaintiff requested an administrative hearing." That is the language to brief; the rest of the decision supplies the procedural posture.
Michael W. Winsor v. Commissioner of Motor Vehicles
Michael W. Winsor v. Commissioner of Motor Vehicles, 101 Conn. App. 674 (2007)
Opinion HARPER, J. Connecticut’s implied consent law, General Statutes § 14-227b, 1 directs police officers to prepare a written report whenever a person refuses to *677 submit to a blood, breath or urine analysis. The statute further mandates that “a third person who witnessed such refusal” endorse the report on the incident. The issue in this appeal…
On implied consent / breathalyzer refusal, Michael W. Winsor v. Commissioner of Motor Vehicles speaks to the Connecticut dispute in this passage: "Opinion HARPER, J. Connecticut’s implied consent law, General Statutes § 14-227b, 1 directs police officers to prepare a written report whenever a person refuses to *677 submit to a blood, breath or urine analysis." The surrounding opinion shows how the court applied that language to the record.
State of Connecticut v. Mark Andrew Coyne
State of Connecticut v. Mark Andrew Coyne, 118 Conn. App. 818 (2010)
…here he had been drinking. After the defendant was read the implied consent advisory and asked to submit to a breath test, 4 he refused. *823 At trial, defense witness Clark Miller, a nonpracticing podiatrist working for a “forensic gait analysis group,” testified that the defendant had come to him for a gait analysis in connection with the drunken driving charge. This assessme…
Practitioners open State of Connecticut v. Mark Andrew Coyne when Connecticut implied consent / breathalyzer refusal turns on the distinction in this sentence: "After the defendant was read the implied consent advisory and asked to submit to a breath test, 4 he refused." Do not lift it out of the facts the court was deciding.
Nicholas ADAMS v. COMMISSIONER OF MOTOR VEHICLES
Nicholas ADAMS v. COMMISSIONER OF MOTOR VEHICLES, 182 Conn. App. 165 (2018)
…. " General Statutes § 14-227b, commonly referred to as the implied consent statute, governs license suspension hearings." Santiago v. Commissioner of Motor Vehicles , 134 Conn. App. 668 , 674, 39 A.3d 1224 (2012). Section 14-227b (g) provides in relevant part that "[t]he hearing shall be limited to a determination of the following issues: (1) Did the police officer have probab…
Practitioners open Nicholas ADAMS v. COMMISSIONER OF MOTOR VEHICLES when Connecticut implied consent / breathalyzer refusal turns on the distinction in this sentence: "General Statutes § 14-227b, commonly referred to as the implied consent statute, governs license suspension hearings.' Santiago v. Commissioner of Motor Vehicles , 134 Conn. App. 668 , 674, 39 A.3d 1224 (2012)." Do not lift it out of the facts the court was deciding.
Key takeaways
- Primary authority: Conn. Gen. Stat. § 14-227b.
- Administrative hit: A first refusal typically yields a 45-day license suspension followed by a period of ignition-interlock restricted driving; longer suspensions apply with prior offenses, administered by DMV after an opportunity for hearing.
- Criminal exposure: Refusal is mainly administrative but can affect criminal sentencing and pretrial conditions.
- Evidence: Refusal evidence is admissible in the OUI prosecution.
- Blood vs. breath: federal Supreme Court doctrine in Birchfield and McNeely still frames warrant rules.
Implied consent in Connecticut
Connecticut drivers consent to chemical alcohol testing when arrested for operating under the influence. Officers must inform the driver of the administrative license consequences of refusal under § 14-227b.
Implied consent is not the same as a Miranda warning. Officers typically must advise of the consequences of refusal before requesting a chemical test. Failure to give a required advisory can affect whether the administrative suspension sticks — a frequent issue in Connecticut appellate opinions.
License suspension and administrative hearings
A first refusal typically yields a 45-day license suspension followed by a period of ignition-interlock restricted driving; longer suspensions apply with prior offenses, administered by DMV after an opportunity for hearing.
The DMV / administrative track often runs separately from the criminal DUI case. Missing the short window to request an administrative hearing can lock in a suspension even if the criminal charge is later reduced or dismissed. Always calendar the administrative deadline the same day as the arrest.
Frequently asked questions
What happens if I refuse a breathalyzer in Connecticut?
A first refusal typically yields a 45-day license suspension followed by a period of ignition-interlock restricted driving; longer suspensions apply with prior offenses, administered by DMV after an opportunity for hearing. Refusal is mainly administrative but can affect criminal sentencing and pretrial conditions.
Is refusal a separate crime in Connecticut?
Refusal is mainly administrative but can affect criminal sentencing and pretrial conditions. Birchfield permits criminal penalties for breath refusal; blood testing for criminal punishment generally needs a warrant.
Will the prosecutor tell the jury I refused?
Refusal evidence is admissible in the OUI prosecution.
Do I need a warrant for a blood draw?
Breath testing is standard at booking; blood draws are used with consent, a warrant, or recognized exceptions, particularly when drugs are suspected or breath testing is unavailable. See also Birchfield and McNeely linked above.