Forensics is dedicated to a science, the methodical collection and analysis of evidence to facts that can be presented to establish in court proceedings. Although the crime scenes and laboratories are connected, perhaps most often associated with forensic science, there is also a network or computer forensics, forensic accounting, forensic engineering and forensic psychiatry, including specific areas that now an integral part of forensic medicine. United States of America, has a theme forensics rather obscure to the general public before the trial of Orenthal James Simpson double murder in 1995. In the historical case that the entire nation taken weeks of testimony in the detection of blood DNA, footprint evidence, fiber evidence and other forensics could be heard. Since then a variety of TV shows based on forensic science have consistently exceeded the ratings, making it a household word.
To protect and preserve those who collect forensic evidence must follow strict procedures to be contaminated or destroyed the evidence, and must include the Chain of Custody. Since science is impartial and healthy, forensics as a very essential part of any investigation. Even if the witnesses can often be confused, have problems of credibility, have an interest in the results of fading memories, or even disappear, forensics, “tells the same story” no matter how often he is tested, or how many years have passed.
The field of forensic science is so large that it requires specialists or criminalists in each point of the investigation, make analysis of track tires, dentistry, lands and grooves that each weapon unique. Microscopic evidence and proof of transmission such as fibers and hairs, blood splatter and forensic entomology, there are many areas of specialization in forensic science.
During the processing of forensic evidence, it is often far the best and most convincing evidence that a criminal prosecution or the defense counsel may have considered in their arsenal. Some people suspect that the public awareness of forensic science could be potentially dangerous to attempt the application of the law by producing educated criminals, the more inclined, could clean a crime scene. Experts usually tend to believe that it is almost impossible to avoid leaving traces of evidence of a crime scene, even if extraordinary efforts made by the opposite.
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