Dactyloscopist. Aka “Fingerprint Expert”. By: Eliza Morgan and Caitlin Kelley. Our Specialist at Work . Countless crime scenes are left without further investigation because of a lack of proper personnel or evidence
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Aka “Fingerprint Expert”
By: Eliza Morgan and Caitlin Kelley
Latent prints- these are the prints that are hidden to the naked eye. These are the prints that take the most training to find and analyze, and that are hardest to make comparisons with. Most of the time at crime scenes, these are the prints that a fingerprint specialist is looking for. Usually need enhancement and need to be somehow lifted from the crime scene
Patent prints- obvious to the human eye. Since they can already be seen, they are usually photographed and taken from the scene and don’t need any enhancement
Plastic prints- A print that is placed in a material that keeps the shape of the ridge detail of the print (example material: melted candle wax). These prints are photographed and need no enhancement, but specialists are away that other latent prints may also exist on these materials.
Loops(70% of prints encountered): radial loop, ulnar loop (depending which hand the loop is found on)
Whorls (25-35% of prints): plain whorl, central pocket whorl, double loop whorl, accidental whorl
Arches (5% of prints): plain arch, tented arch
Double loop whorl
Central pocket whorl
(An article from the FBI Law Enforcement Bulletin, 1992)
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