2020 Minnesota TZD Webinar Series: Case Reconstruction—Building Your Case After Leaving the Scene

Wednesday, October 21, 2020

About the Webinar

Fatal crashes are often complex investigations, and adding a drunk or drugged driver makes them even more complicated. This webinar explored strategies that can help make cases during the follow-up investigation, including backtracking suspects’ activities leading up to the crash, Drug Recognition Evaluator reconstruction, crash reenactment, obtaining toxicology results, understanding the legal issues in adjudicating drug-impaired drivers, and preparing for trial.

Webinar Recording & Materials


Sergeant Tyler Milless, Minnesota State Patrol, Minnesota Department of Public Safety


Sergeant Don Egdorf
Sgt. Egdorf

Sergeant Don Egdorf is a traffic safety liaison officer in the Traffic Enforcement Division of the Houston Police Department (HPD) in Houston, Texas, and a 19-year veteran with HPD's DWI Task Force. He has spent 18 of those 19 years dedicated to taking impaired drivers off of Houston's roadways and specializes in working DWI-related fatal crashes. Sgt. Egdorf has been a DRE instructor since 2007 and has had the opportunity to speak all over the country. He is currently serving as the vice-chair of the MADD National Board of Directors.


Attendees are eligible for 1.0 Continuing Legal Education (CLE) credit, 1.0 POST credit, and 1.0 Professional Development Hour (PDH).

More Information

For more information about the webinar, please contact Linda Dolan at ldolan@umn.edu.


The webinar was offered by the Minnesota Toward Zero Deaths Program and the Minnesota Departments of Health, Public Safety, and Transportation, with funding from the National Highway Traffic Safety Administration. The webinar was hosted by the University of Minnesota's Center for Transportation Studies and facilitated by the College of Continuing and Professional Studies.