Class characteristics are general features shared by a group, such as the overall pattern type (loop, whorl, or arch) and ridge count. Crime scene investigators employ a variety of techniques to visualize them, depending on the surface texture and material.
How Fingerprints Are Analyzed in Crime Investigation
Determining Individuality and Class Characteristics Fingerprint analysis relies on distinguishing between class characteristics and individual characteristics. Processing and Documentation Once a latent print is visualized, meticulous documentation is essential to preserve its context and integrity before collection.
While these help categorize the print, they do not identify a specific person. The process transforms a simple print into a powerful piece of evidence, linking suspects to locations or establishing their presence at a specific time.
How Fingerprints Are Analyzed in Crime Investigation
If the print is on a solid, non-porous surface, it may be lifted using adhesive tape or a gelatin lifter. Automated Fingerprint Identification Systems (AFIS) allow law enforcement to scan a crime scene print against millions of records stored in national databases.
More About How are fingerprints analysed
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