Comparative Dermatoglyphics: Fingers, Palms, and Feet (07/06/21)
Jul 6-8, 2021
16 hours total
Availability: In stock
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Click here to print or download webinar details: Comparative Dermatoglyphics July 2021
Instructor: Alice White
During the analysis of a questioned friction ridge impression (e.g., latent print), the examiner must answer three questions:
1) Shall I keep this one?
2) Where should I look for it?
3) How should I look for it?
The question of “where” refers to the possible donor regions of skin. Is it a finger, palm, or foot? Am I certain it is a palm and not a foot? Am I certain it is a palm and could not possibly be a finger? The question of “how” refers to the orientation of the impression. Does the impression have sufficient distinguishing features that I only need to search in one orientation? Should alternative orientations be considered?
The key to optimal performance assigning anatomical regions and orientations is a suite of robust mental models of each region of the friction ridge skin. How do we build and maintain robust mental models? Exposure to friction ridge impressions of all regions of the skin with a focus on the similarities and differences in shape, size, creases, patterns, deltas, ridge flows, ridge counts, ridge lengths, ridge thicknesses, and ridge curvature. Robust regional mental models increase comparison efficiency via faster recognition of the various parts of the hands and feet and decreases risk of error by recognizing the appropriate conditions to widen search parameters (check other regions of the skin or alternative orientations).
This three-day workshop provides 16 hours of dedicated exploration of the features across the friction ridge skin to build and enhance the examiner’s mental models for friction ridge impressions from the various parts of the hands and feet. Impressions of the friction ridge skin of the fingers, palms, and feet will be compared and contrasted to illuminate both the distinguishing features and the shared features. This course is focused on establishing where and how to look during the Analysis phase of ACE-V, it does not include comparisons.
Day 1 (6 hours) Online for 4 hours; 2 hours independent work due at end of day
Day 2 (6 hours) Online for 4 hours; 2 hours independent work due at end of day
Day 3 (4 hours) Online for 4 hours; final quiz due in the afternoon
- The attendee will be able to identify the embryological forces that establish ridge flows, patterns, and deltas on the hands and feet.
- The attendee will be able to identify key shape differences in fingers, palms, and feet.
- The attendee will be able to describe the typical differences in creases found in various regions of the friction ridge skin.
- The attendee will be able to indicate the rarity of patterns in different regions of the friction ridge skin.
- The attendee will be able to indicate the variation in the number of deltas and positions of deltas in the fingers, palms, and feet.
- The attendee will be able to describe the importance of ridge counts between patterns and deltas in palms and feet.
- The attendee will be able to identify factors that impact ridge thickness, ridge length, and ridge curvature in fingers, palms, and feet.
- The attendee will be able to describe key elements that elevate or diminish confidence when assigning anatomical region and distal orientation.
The week before the webinar you will receive an email link to a folder to download the lecture handout and assignments. The main lecture handout can also be downloaded from the webinar platform at the time of the webinar.
Assessing Learning Outcomes (a.k.a. Quiz)
In order to verify the learning outcomes have been achieved, there is a 20-question quiz via SurveyMonkey at the end of the webinar. Attendees must score a minimum of 70% on the quiz in order to receive a training certificate for the webinar. Please note the quizzes are open-book and poll questions are given during the webinar to prepare attendees for the quiz.
This webinar may only be attended by the person who is registered for the webinar. Evolve Forensics does not permit broadcasting, watching, listening, or distributing the webinar or any of the webinar handouts to individuals who are not registered for this webinar.
Attendees must be able to access the following websites in order to participate:
Webinar Platform: GoToWebinar
Test Platform: SurveyMonkey
The following YouTube Video shows how to use GoToWebinar as an attendee: https://youtu.be/IQ3Xwwgbd8Y
Please contact Alice White via email at Alice@EvolveForensics.com