What is fingerprint analysis?

Forensic scientists and officials in criminal proceedings often rely on fingerprint analysis to identify people who could be at a crime or other secrets. They usually analyze and compare the fingerprint sets that they find in the field with those in the database of recorded prints. Most of the analysis is based on the unique friction combs on each finger and there are several ways to detect fingerprints on the surface. These combs are also attached to the nerves, so the individual can be able to feel even the least pressure on the ridge. The ridges create patterns of fingerprints. It is not if there is any form of mutation, injury or other external changes. The fact that fingerprints are renting measurements throughout life is one of the factors that make fingerprint analysis effective in identifying individuals from their prints. No two fingers have the same print. Although no study showed no doubt that all fingerprints are unique in all years of recordsIt has never been found that no two are completely identical.

fingerprints are made up of small lines of concentric ridges. These combs have three general forms, loops, beliefs and arches. Many print records are organized in these categories during the fingerprint analysis.

The ridges also form unique fingerprints based on small variations in their samples. These small differences are often called menutiae . The normal minutes include the ridge endings, the Ridge is divided by called bifurcation, spurs that tear off the main ridge, and crossover, which connect two combs. Other Marniae is often called lakes, islands and dots. Lakes are open places with one ridge. The islands are short ridges and dots are small ridges that are almost round.

In the fingerprint analysis, three main ways are left on the objects. First friction ridges secrete oils and sweat, and when the finger atIt goes into contact with the object, the liquids leave the formula behind. Second, secretions can penetrate into a porous surface like paper and leave a slight spot. Finally, if the finger comes into contact with liquid or a viscous substance such as ink or blood, the liquid can leave a visible print behind.

These prints are usually photographed if they are visible to the naked eye. Fingerprints that are not easily visible are usually called latent prints . Latent prints must be processed in order to analyze them. Some prints can be made visible for the eye or for scanners with fine powder, special lighting or chemical treatment.