Iscan-Helmer 1993
Definition
The edited volume 'Forensic Analysis of the Skull' (Iscan and Helmer, Wiley-Liss, 1993) that brought together the first systematic reliability assessment of photo-skull superimposition and established the evidence base for the method's epistemological limitations.
Related terms
- Consistent with
- The categorical superimposition conclusion that examined morphological features do not exclude the skull as deriving from the same individual as the portrait....
- Exclusion
- The categorical conclusion that one or more examined features are clearly inconsistent in a way that cannot be explained by projection angle,...
- Frankfurt Horizontal Plane
- The anatomical reference plane defined by the upper border of the external acoustic meatus and the lowest point of the orbital margin...
- Glaister-Brash Method
- The original photographic-transparency superimposition protocol developed by John Glaister Jr and James Couper Brash for the 1935 Buck Ruxton case in Lancaster...
- Gnathion
- The most inferior point of the mandibular symphysis in the midline, corresponding to the tip of the chin in the portrait photograph....
- Gonion
- The most posterior and inferior point of the mandibular angle, bilaterally. Used in superimposition to assess the width of the jaw angle...
- Nasion
- The anatomical landmark at the junction of the nasal bones and the frontal bone (the bridge of the nose). One of the...
- Photo-Skull Superimposition
- The forensic identification method of placing a life portrait photograph alongside or overlaid on a photograph of a recovered skull, aligning them...
- Video Superimposition
- The updated superimposition workflow using a motorised skull turntable, a calibrated video camera, and real-time electronic mixing of the skull video image...
Explained in
- Photo-Skull and Video SuperimpositionThe edited volume 'Forensic Analysis of the Skull' (Iscan and Helmer, Wiley-Liss, 1993) that brought together the first systematic reliability assessment of ph...