Courses and Workshops

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Analysis of Distortion in Latent Prints

This three-day workshop focuses on the Analysis phase of the ACE-V (Analysis, Comparison, Evaluation, Verification) process. During the Analysis of a latent print, the analyst is gathering information. The analyst is detecting the features they may use during the comparison, setting tolerances for variation in appearance, and determining the utility of the print. The ability to detect these features in the latent print and the establishment of tolerances for variation in appearance are inextricably linked to the distortion present in the latent print.


Essentials of Latent Print Examination:  Establishing Admissibility

There are two primary domains of knowledge that support the validity of latent print discipline: 1) science demonstrating the discriminating power of friction ridge impressions and 2) science demonstrating trained analysts are capable of providing accurate conclusions. While many analysts learn this information as part of training, they often struggle articulating these complex concepts to the trier of fact. This intense five-day course will review key concepts and research underlying both domains that can be used to support latent print admissibility. The instructor will facilitate discussions and mentor attendees.  Attendees will devise questions and answers covering the concepts and practice testimony. A few comparison exercises are provided to reinforce the academics. Additionally, a court case illustrating real-world application of these testimony methods is woven throughout the week. The content of the course is organized into four blocks that logically build on one another.


Power Palm Prints

This three-day workshop is dedicated to the friction ridge skin of the palms.The palms have regional variation in the crease patterns and ridge flows that can be exploited to determine the anatomical region and distal orientation of latent prints. Additionally, the patterns on the hands have a distribution within the population that informs the rarity of level one features during the ACE-V (Analysis, Comparison, Evaluation, and Verification) process.