2014 Educational Conference

Glenn Langenburg

Conference Speakers

Biographical Information

Glenn Langenburg is a certified latent print examiner at the Minnesota Bureau of Criminal Apprehension and also manages a consulting business (Elite Forensic Services, LLC).  


He has experience with crime scenes and bloodstain pattern evidence and he is certified as a general criminalist by the American Board of Criminalistics.  Glenn has a Ph.D. in Forensic Science from the University of Lausanne in Switzerland. His thesis, “A Critical Analysis and Study of the ACE-V Process”, focuses on decision-making and the application of ACE-V by fingerprint experts.  


Glenn has lectured and hosted workshops nationally and internationally at forensic science conferences in the United States, Canada, and Europe on topics including Daubert issues, research, probabilistic approach, error rates, and fingerprint methodology.  He has published numerous research articles in peer reviewed journals.  


Glenn has the privilege of serving the fingerprint community as a member of SWGFAST (Scientific Working Group for Friction Ridge Analysis, Study, and Technology).  He also co-hosts a weekly podcast, “The Double Loop Podcast”, on fingerprint topics with Eric Ray.  


Most recently, Glenn has taken on a new role at the Minnesota BCA as a Forensic Science Supervisor of the Drug Chemistry Section.


Abstract - Presentation 1

The Integration of Technology and ACE-V


This presentation provides several views on the nature of ACE-V applied to friction ridge examinations.  


The lecture will explore the history, present application, and possible future of ACE-V.  We will see how technology has steadily infused itself into every aspect of ACE-V.  What are the benefits and challenges of such?  


We will also explore emerging technology and trends.  We will take a critical look at this process upon which we rely, and ask ourselves, “where are there opportunities to improve our practices with technology?”  



Abstract - Presentation 2


Presenting Probabilities in the Courtroom


This lecture will describe a moot court exercise that took place live in front of a large audience at the International Association for Identification Annual Educational Conference in Milwaukee, Wisconsin (United States) in 2011.  


Two “witnesses” for the State presented probabilistic fingerprint evidence to 11 mock jurors, who were selected by virtue of having no forensic or law enforcement background.  


The mock jurors were presented with case details and basics of fingerprint examinations.  They listened to direct examination by a prosecutor and cross-examination by a defence attorney regarding probabilistic fingerprint evidence.  


The mock jurors were then surveyed for their comprehension and appreciation of the testimony after each witness and after closing arguments.  After the testimony, the audience was also surveyed for their reactions.  


This lecture presents the results of those surveys and discusses various viewpoints on the presentations of probabilities in the courtroom.