Impaired Driving Testing

Mission

To help assure road safety by certifying breath analysis instruments and law enforcement officers and by testing blood specimens obtained from motor vehicle operators arrested for Driving Under the Influence of Alcohol or Drugs (DUI/DUID).

What we do

  • Identify and quantify drugs and alcohol from blood specimens submitted by law enforcement agencies.
  • Train law enforcement officers in the areas of breath analysis instrument operation, relevant laws and regulations and operational protocols, and drug recognition in motor vehicle operators.
  • Coordinate and maintain the National Highway Safety Administrationís Standard Field Sobriety Testing (SFST) instructional program.

Accomplishments

  • Since 2008, the Forensic Toxicology Laboratory has maintained national accreditation to the ISO/IEC 17025:2005 standards by the ANSI-ASQ National Accreditation Board (ANAB).
  • 2016 data: Number of positive breath tests administered by law enforcement: 879; Average age: 37.7; Average blood or breath alcohol level: .15 (blood), .162 (breath); Number of law enforcement officers certified to perform breath alcohol testing: 1,662; Number of impaired driving blood tests tested: 197; Percentage of cases positive for alcohol: 46%; Percentage of cases positive for drugs other than alcohol: 68%; Most commonly detected drugs in blood: 1. THC and/or metabolites (marijuana) 2. Opioids 3. Benzodiazepines 4. Cocaines 5. Other CNS depressants