Connecticut OUI law is not limited to alcohol. Drug-impairment allegations can involve prescription medication, cannabis, controlled substances, or combinations of substances. Connecticut law commonly uses OUI; many clients search for the same charge as DUI.
Officer observations, driving, statements, field tests, drug-recognition evaluations, medical records, blood or urine testing, toxicology, and expert interpretation may become important.
Detecting a substance and proving impairment at the relevant time are not necessarily the same scientific question. The test method, timing, concentration, pharmacology, and other explanations may matter.
The defense should examine the stop and search as well as the reliability, admissibility, and meaning of toxicology evidence.
Connecticut OUI law applies to operation under the influence of a drug as well as alcohol. A prescription or lawful use does not automatically answer the impairment question. The important issues include what substance is alleged, when it was taken, dosage, observed driving, physical signs, statements, medical explanations, toxicology, and whether the evidence actually establishes impairment at the time of operation.
Drug OUI investigations may include a Drug Recognition Expert evaluation, biological testing, body-camera recordings, field observations, and laboratory evidence. Those pieces should not simply be treated as one conclusion. We examine how the evaluation was conducted, whether observations have alternative explanations, the timing and limits of toxicology, chain of custody, and whether the State can reliably connect a detected substance to impaired driving.
The typical signs officers associate with alcohol and the evidence used to claim drug impairment can be very different. We want to know what drug the State claims caused impairment, what signs the officer relied on, what field testing or drug-recognition procedures were used, and what toxicology actually shows.
The presence of a drug or metabolite does not automatically answer whether the person was impaired by that substance at the time of operation. Timing, dosage, pharmacology, alternative explanations and expert interpretation can become important.