Like everyone, all fingerprints are unique. Regardless of whether it is from two friends at the ends of the earth or between two, they contain different fingerprints. For this reason, fingerprints are very attractive. Fingerprints are unique to people, so fingerprints are extremely useful for law enforcement agencies around the world. The use of fingerprints in forensic science drew my interest because the overall concept is very interesting.
Fingerprint recognition - Fingerprints have been used as a way to identify individuals for hundreds of years. Because everyone has a unique fingerprint, law enforcement agencies can use fingerprints to solve crime problems by matching fingerprints against personal fingerprint databases.
Since the late nineteenth century police agencies around the world have used fingerprinting methods to identify suspects and victims of crime. The basis of traditional fingerprint recognition technology is simple. The skin on the surface of the palm of the palm forms a ridge, a so-called shaped papillary ridge whose shape is unique to each individual and does not change over time. Even the same twins (sharing their DNA) do not have the same fingerprint. The best way to make potential fingerprints visible is to be able to photograph them, which can be complicated, for example it may depend on the type of surface left . It is often desirable to use "developers", typically powders or chemicals, to create a high degree of visual contrast between the raised pattern and the surface to which the fingerprint is attached.
More fingerprinting work in South America led to the use of fingerprint evidence to solve homicide - such a first case in history. LaPlatta prosecutor Alvarez in Argentina settled the "killing of Roxas" where bloody fingerprints were found on the door. In 1896, the human body measurement method was abandoned in Argentina and switched to fingerprint recognition. The process of using fingerprint recognition in the United States is slow. Most of the identification stations were trapped in the Bertillon regime up to the now famous Williwest incident in Leavenworth Prison. When Will West arrived in prison in 1903, the identity officer claimed that he was a prisoner. After accepting the measure of Bertillon, the authorities found a document of William West with almost the same measure as claimed to be Will West. Even their photos show extraordinary similarities