FSC100H5 Lecture Notes - Lecture 15: Dermis, Fetus, Surface 2
Document Summary
Fingerprint residues: composed of various substances. Methods of development target properties and compounds of ngerprint residues: successful ngerprint recovery method: Applicable to prints on different surfaces: porous/nonporous, colour/fluorescence, submerged in water, covered in dirt. Does not destroy integrity of the pattern. Keeping one step ahead: criminals covering hands with gloves and faces with masks, but what about their footwear, criminals have to enter and exit crime scene areas . Leave traces of footwear: but often this evidence is overlooked/destroyed. Not believing that can be recovered after people have walked over the scene. Footwear evidence: transfer of class and individual characteristics between footwear and surface, 2 forms of footwear evidence. Impressions: 3d, made in soft material (e. g. ) mud, photograph and make casts. Prints: essentially 2d, made on solid surface by dust/pollen, photographed and lifted. Info from footwear evidence: identify/eliminate footwear, presence at scene/participation in crime.
