Reducing Erroneous Exclusions (3.5 hours)
Erroneous exclusions are being discovered with surprising frequency in latent print units around the country. Research into the decisions of latent print examiners show that erroneous exclusions are common and inevitable. So, what is enough for an exclusion? What is your lab’s standard for exclusion? This workshop will review the policy changes that Arizona DPS implemented and examples of erroneous exclusions from casework. Hands-on comparison exercises will demonstrate a practical approach to exclusion decisions.
Penny Dechant has been employed with the Arizona Department of Public Safety as a Supervising Forensic Scientist for the Field Services Unit since 2019 and formerly as a Latent Print Technical Lead with the Latent Print Unit since 2004. She earned a BS in Chemistry and a Master’s in Public Administration from Northern Arizona University. Penny Worked as a Crime Scene Specialist for the Scottsdale Police Department from 2000 to 2004. Penny is a Certified Latent Print Examiner through the International Association for Identification and serves on the Board of Directors for the IAI and the Arizona Identification Council.