Glaister-Brash Method
Definition
The original photographic-transparency superimposition protocol developed by John Glaister Jr and James Couper Brash for the 1935 Buck Ruxton case in Lancaster / Edinburgh, published in 'Medico-Legal Aspects of the Ruxton Case' (1937).
- Developed by
- John Glaister Jr and James Couper Brash
- Case
- 1935 Buck Ruxton murders
- Location
- Lancaster and Edinburgh
- Publication
- Medico-Legal Aspects of the Ruxton Case (1937)
Common questions
What made the Ruxton case significant for forensic identification?+
It was one of the earliest cases where photographic superimposition matched a skull recovered from dismembered remains to an ante-mortem photograph, helping establish victim identity and contributing to a murder conviction.
How did the original method work in practice?+
Glaister and Brash photographed the skull at the same scale and angle as an existing portrait photograph, then overlaid the two images as transparencies to compare skeletal landmarks against facial features such as the chin, cheekbones and eye sockets.
How does this differ from later superimposition methods?+
Later video and digital superimposition systems replaced still photographic transparencies with real-time video mixing or computer overlay, letting examiners adjust angle and scale interactively rather than relying on fixed exposures.
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...
- 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...
- Iscan-Helmer 1993
- The edited volume 'Forensic Analysis of the Skull' (Iscan and Helmer, Wiley-Liss, 1993) that brought together the first systematic reliability assessment of...
- 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...