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Alcohol, Drugs and Impairment Division

  • The NSC Alcohol, Drugs and Impairment Division tackles substance abuse and prescription drug issues and makes recommendations to combat the drinking and driving problem through legislation, education and other countermeasures. The Division also offers plenty of opportunities for safety-focused networking with others in your field.


    Meet the NSC ADID Leaders


    Laura J. Liddicoat
    Alcohol, Drugs and Impairment Division Chairman

    Ms Liddicoat received a bachelor's degree in medical technology at University of Wisconsin. She is a member of the Society of Forensic Toxicologists, American Academy of Forensic Sciences, International Association for Chemical Testing, Joint AAFS/SOFT Driving Under the Influence of Drugs Committee and the Organization of Scientific Area Committees. Liddicoat worked for 29 years in the Forensic Toxicology Section at the Wisconsin State Laboratory of Hygiene, where she served as technical expert for alcohol and drug chemists, reported and interpreted alcohol/drug results and provided testimony regarding drug pharmacology and effects on driving.

    Chester Flaxmayer
    Alcohol, Drugs and Impairment Division Vice Chairman



    Robert D. Johnson Ph.D
    Alcohol, Drugs and Impairment Division Secretary

    Mr. Johnson earned a Ph.D in analytical chemistry from The University of Oklahoma. Certified as a Diplomate by the American Board of Forensic Toxicology, he joined the Tarrant County Medical Examiner's Office as the chief toxicologist in 2011. Prior to joining the ME's office he worked for 10 years as a senior research chemist at the Federal Aviation Administration's Civil Aerospace Medical Institute in Oklahoma City. Dr. Johnson is active in the Society of Forensic Toxicologists, the American Academy of Forensic Sciences and the Southwestern Association of Toxicologists. He has published more than 50 scientific articles.


    Deborah Trombley
    NSC Staff Representative

    Ms Trombley has a 25-year background in injury control programs and marketing communications. At NSC, she works on influencing change in behavior and policies to reduce motor vehicle crashes. Deborah has worked on cell phone distracted driving, teen driving and Graduated Driver Licensing, alcohol-impaired driving, child passenger safety, including serving as Secretariat of the National Child Passenger Safety Board, and employer policies. Prior to jo­ining NSC, Deborah worked on underage drinking and youth violence issues at the Minnesota Department of Health. Deborah holds a master's in public health from University of Michigan.


    Tess Benham
    NSC Staff Representative

    Ms Benham is subject matter expert responsible for development, implementation and evaluation of programs to prevent prescription drug overdose. In her work at the Council, she has developed programs promoting safety and health in home and community settings. Benham serves a Certifier for communities seeking designation through the Safe Communities America Initiative. She is a trained Illinois Domestic Violence and Sexual Assault Crisis Counselor. Benham completed her bachelor's in management at George Mason University.

    Randall E. Beaty
    Alcohol, Drugs and Impairment Division Immediate Past Chairman



    Tammy T. Washington
    NSC Division Program Manager

    Tammy has been employed with NSC for more than 10 years. She is responsible for managing the NSC volunteer engagement programs, meetings, websites and databases. Besides the Alcohol, Drugs and Impairment Division, she also works with the Business & Industry, Construction, Labor and Utilities divisions. Tammy can be reached at (630) 775-2227.

  • Robert F. Borkenstein Award

    ​The Alcohol, Drugs and Impairment Division of the National Safety Council has named Laura Liddicoat the recipient of the 2016 Borkenstein Award. Liddicoat is being recognized for her 29 years of work in forensic toxicology at the Wisconsin State Laboratory of Hygiene, and for 13 years of service to the Alcohol, Drugs and Impairment Division of the National Safety Council, which she now chairs.

    Read more about her achievements.

    The award, named for Breathalyzer® inventor Robert F. Borkenstein, recognizes individuals who, through a lifetime of service, have made outstanding contributions to the field of alcohol- and drug-related traffic safety. Honorees are selected by professionals involved in the Alcohol, Drugs and Impairment Division, which is managed by the National Safety Council.

    Ms. Liddicoat will be recognized at a reception on Feb. 21 in Las Vegas.

  • Borkenstein Winners

    Since 1989, NSC Alcohol, Drugs and Impairment Division has presented the Robert F. Borkenstein Award to individuals who have made outstanding contributions to traffic safety.

    See Past Winners

National Safety Council Mission

The National Safety Council eliminates preventable deaths at work, in homes and communities, and on the road through leadership, research, education and advocacy.

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