The latest statistics tell us that while driving drunk has become a bit less common, driving high is more prevalent than ever. As Senior Research Scientist Troy Walden explains, what exactly constitutes driving under the influence is not as simple as it once was, especially given the constantly changing landscape of state laws.
About: Dr. Troy Walden, Senior Research Scientist
Troy Walden is director of TTI’s Center for Alcohol and Drug Education Studies. Dr. Walden has over 30 years of experience in highway safety as a law enforcement officer, crash re-constructionist, traffic safety advocate and impaired driving researcher. He has written and presented his research findings at state, national and international conferences and served as a member of several statewide impaired driving advisory committees.