Alcohol Countermeasure Systems Develops Non-Intrusive Artificial Intelligence Technology to Screen for Cannabis

Public concern about impaired driving in general and drug-impaired driving in particular has increased in recent years with distracted driving and being drowsy or sleep deprived further adding increased risk to an already complex task. As a result, the need for the development of early warning systems for driver monitoring is critical for preventing motor vehicle collisions and human fatalities

ACS is pleased to announce positive results of recent research towards the development of non-intrusive Artificial Intelligence (AI) technology to screen for cannabis impairment.

Based on research conducted in collaboration with the Centre for Addiction and Mental Health (CAMH) ACS has designed and developed a Cannabis Screening System using AI models and eye-tracking information from dozens of eye-tracking features for non-intrusive cannabis influence assessment in drivers

“The overall results of this research are encouraging and show that several eye tracking features highly correlate with one or both target measurements of blood THC level and Standard Deviation of Lateral Position (SDLP) measurements,” says Felix J.E. Comeau, President & CEO of ACS. “These results reveal the potential of eye tracking information to be used as a non-intrusive marker of THC presence and/or impairment for driver monitoring.”

The research results also show that both THC presence and instances of impaired driving can be detected with high accuracy (95% for THC and 81% for impairment detection) using deep learning methodologies.

With approximately 24% of drivers reporting driving within two hours of cannabis consumption and with increased accessibility of cannabis through legalization, a reliable Cannabis Screening System will provide an easy-to-use, non-intrusive screening solution which can be employed by law enforcement officers at the roadside for fast and cost-effective assessment of driver impairment. Additionally, such systems can also be used for in-vehicle driver monitoring and continuous real-time evaluation of driver vigilance to reduce impaired-driving incidents in the transport-industry, public transit and passenger vehicles.

About ACS

Alcohol Countermeasure Systems, ACS, is an international group of companies with over 40 years experience developing innovative technology to prevent impaired driving. A technology leader and manufacturer of alcohol interlock devices and breath alcohol testers, ACS provides products and services to law enforcement, automotive, industrial, public and personal safety markets. For information regarding ACS efforts to improve global road safety please visit www.acs-corp.com

For additional information, please contact:

Tony Power

ACS Research


60 International Boulevard

Toronto, Ontario M9W 6J2 Canada


416 619 3500

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Alcohol Countermeasure Systems Corp., 60 International Blvd., Etobicoke, ON M9W 6J2 Canada


February 2020











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