What are the different fingerprint techniques?

Fingerprints are used as a means of identifying from ancient Chinese and Babylonian civilizations. Although it will not apply to criminal proceedings until the 19th century, understanding fingerprints has proved to be a unique and different method of distinguishing people much earlier in human history. Modern fingerprint techniques, supported by computer and laser technology, accelerated the search process and provided a huge database of comparative samples. The prints remaining on the scene may be a direct impression that has remained on the marty surface, as if the suspect was pushing on the soil or leaving visual printing in the blood. Dirt or oil on the skin can also cause low fingerprints on some surfaces that need to be explored with powder or light to light lighting.

Traditionally, the main fingerprint techniques used to obtain identification prints from the suspect included an ink impression created on paper. Hands would be cleaned to wipe off dirt or other substances, and then would be namink. The suspect would overturn every tip of the finger over the section in a piece of paper and then pushed all five fingers down on the paper. Although this fingerprint technique gave an effective impression of human unique prints, it required manual examination to determine the consensus. As fingerprint sets grew by thousands, identification has become a laborious process that is easily exposed to a human error.

Today, common fingerprint techniques use digital scanning devices and computer printing databases. The first electronic system was created by the Japanese police at the age of 80, but digital scanning and virtual database programs were quickly picked up by coercive organs around the world. With most of the digital scanningsystems, suspect, each finger on an electronic pad sensitive to a touch that records the impression of printing. The press then passes through computer programs that quickly compare it to thousands or even millions of records in search of a match.

One of the early editions was insufficient cooperation between different agencies in different areas. A suspicious captured FBI in New York could have copies at the police station if the Oregon, but because the databases were not shared, the connection between crimes can be easily missed. Today, many countries and even international agencies share databases that ensure that matches do not miss.

The original fingerprint techniques used to discover match are still used by modern systems. Each person has distinct fingerprints, made up of arches, vortex and ridges. In front of computer databases, technicians compared fingerprints suspected with each print file and were looking for identical matches in a unique Patterns print. Computers still do the same job, but at much faster speed with a smaller space for error. In centuries from fingerprint techniques, they were first used in criminology, technology and method have grown together to create fast and efficient means of IDENtested.