Petraglia v. Commissioner of Motor Vehicles — License suspension upheld despite negative drug and alcohol tests

Case
Patricia Petraglia v. Commissioner of Motor Vehicles
Court
Connecticut Appellate Court
Judge
Alvord, J.; Moll, J.; Keller, J.
Date Decided
September 29, 2026
Docket No.
AC48540
Topics
License suspension; DUI; Administrative law; Substantial evidence
Source
Read the full opinion

Background

Patricia Petraglia was arrested after reports that her vehicle had been involved in an apparent hit-and-run and later was driven erratically. Officers found her seated in the driver’s seat at her home, observed damage to her vehicle, slow and lethargic movements, fumbling, prescription bottles and loose pills, and difficulty performing field sobriety and ARIDE tests.

Petraglia denied drinking alcohol but said she had taken prescription medication earlier that day. Her breath test registered 0.00, and a urine toxicology report stated that no drugs were detected. Following an administrative per se hearing, the Commissioner of Motor Vehicles suspended her license for forty-five days and required an ignition interlock device for six months. The Superior Court dismissed her administrative appeal.

The Court’s Holding

The Connecticut Appellate Court affirmed. It held that the Superior Court correctly applied the deferential substantial-evidence standard governing administrative license-suspension appeals and properly concluded that Petraglia had not shown the commissioner’s decision was clearly erroneous.

Negative chemical tests supported Petraglia’s position but were not conclusive. The toxicology report identified limitations in its testing, and the record did not establish whether the medication she said she took, the prescriptions found in her vehicle, or the loose pills would have been detected. The officers’ observations, the reports of unsafe driving, her admission to taking medication, and her performance on field sobriety and ARIDE tests supplied reliable, probative, and substantial evidence of impairment.

Key Takeaways

  • A negative breath or urine test does not necessarily bar a Connecticut administrative license suspension for drug impairment.
  • Under § 14-227b, officer observations and roadside impairment testing may support a finding of operation under the influence.
  • Courts reviewing administrative suspensions defer to the hearing officer’s credibility and fact findings when substantial evidence supports them.

Why It Matters

The decision underscores the limited nature of judicial review in implied-consent suspension proceedings. A driver challenging a suspension must overcome not only adverse behavioral evidence but also substantial deference to the agency’s evaluation of competing explanations for that evidence.

For practitioners, the case highlights the importance of developing evidence about the scope of toxicology testing, the medications at issue, and any medical conditions that could explain poor roadside-test performance.

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