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  • Reducing Erroneous Exclusions Workshop

Reducing Erroneous Exclusions Workshop

  • 13 Oct 2017
  • 1:00 PM - 4:00 PM
  • Hotel CASA, Amsterdam, Netherlands


  • Registration is only for registered attendees of 3rd annual EU IAI educational conference.

Registration is closed

This workshop is only available to participants who have already registered to attend the 3rd EU IAI Conference. Seats are limited. Access to the workshop will be in the order of participant registration.

Reducing Erroneous Exclusions Workshop

The exclusion decision is a fairly recent change in latent print comparisons, and the discipline is still struggling with how to handle exclusions. Erroneous exclusions are being discovered with surprising frequency in latent print units around the country. Many labs have begun to verify their exclusion decisions, and this has resulted in errors finally being noticed. Recent research into the decisions of latent print examiners shows that erroneous exclusions are common and inevitable.
So, what training have you had in exclusions? What is enough for an exclusion? What is your lab's standard for exclusion? Is your lab implementing any new Quality Assurance policies to address this problem?

This workshop will review the policy changes that Arizona DPS has implemented in their latent print unit to reduce erroneous exclusions. Examples of erroneous exclusions from casework will be presented along with information on circumstances that might make an erroneous exclusion more likely. Hands-on comparison exercises will demonstrate a practical approach to exclusion decisions.

This class is intended for latent print examiners who routinely conduct comparisons.


Eric Ray has been employed as a Forensic Scientist since 2007 and is a Certified Latent Print Examiner. He earned a BS in Biochemistry and Molecular & Cellular Biology from the University of Arizona in 2000. As a member of the IAI, Eric is on the Editorial Board of the JFI. Eric has published and presented extensively on the exclusion decision in latent print comparisons. In his spare time he also co-hosts the Double Loop Podcast, a weekly show on fingerprint topics. 

The European Division of the International Association for Identification

Laan van Ypenburg 6

2497 GB, Den Haag

The Netherlands

Email: treasurer@theiaieu.org

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