title: Photographic techniques of concern in metric bite mark analysis.
abstract: In bite mark analysis concern is expressed for the need to improve the precision in photographic evidence collection procedures. The use of a rigid ruler (which meets federal specifications) for scale, proper camera positioning in relation to the scale, and a method to evaluate the distortion in a two-dimensional print that records a three-dimensional object is suggested. Disregarding these factors makes metric bite mark analysis inappropriate.
mesh_terms: D001733:Bites and Stings / Q000473:pathology*; D001734:Bites, Human / Q000473:pathology*; D005553:Forensic Dentistry / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D010781:Photography / Q000295:instrumentation / Q000379:methods*; D014894:Weights and Measures / Q000592:standards