(Received 2 July 1988; accepted 25 July 1988)
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The photographic superimposition technique requires an antemortem photograph to be enlarged to life size and the skull to be photographed from the same angle as the antemortem photograph. This paper describes how the magnification factor can be extrapolated by measuring the true interpupil distance of a second person and the photographic interpupil distance of the suspect and the second party. A closed-circuit television (CCTV) system is used to determine quickly the skull photographic angle. We believe these techniques are viable and easy to perform.
Clinical professor, National University of Singapore,
Oral surgeon, National University of Singapore, National University Hospital, Singapore,
Stock #: JFS12697J