What do you mean by Forensic science?

Main Entry: forensic pathology
Part of Speech: n
Definition: a branch of medicine used for legal purposes and concerned with determining cause of death, examination of injuries due to crime and negligence, and examination of tissue samples relevant to crimes; also called forensic science

fo·ren·sic (fə-rěn'sĭk, -zĭk) adj.
Relating to the use of science or technology in the investigation and establishment of facts or evidence in a court of law: a forensic laboratory.

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The application of scientific knowledge and methodology to legal problems and criminal investigations.

Sometimes called simply forensics, forensic science encompasses many different fields of science, including anthropology, biology, chemistry, engineering, genetics, medicine, pathology, phonetics, psychiatry, and toxicology.

The related term criminalistics refers more specifically to the scientific collection and analysis of physical evidence in criminal cases. This includes the analysis of many kinds of materials, including blood, fibers, bullets, and fingerprints. Many law enforcement agencies operate crime labs that perform scientific studies of evidence. The largest of these labs is run by the Federal Bureau of Investigation.

Forensic scientists often present Expert Testimony to courts, as in the case of pathologists who testify on causes of death and engineers who testify on causes of damage from equipment failure, fires, or explosions.

Modern forensic science originated in the late nineteenth century, when European criminal investigators began to use fingerprinting and other identification techniques to solve crimes. As the field of science expanded in scope throughout the twentieth century, its application to legal issues became more and more common. Because nearly every area of science has a potential bearing on the law, the list of areas within forensic science is long.

Forensics is a field of science dedicated to the methodical gathering and analysis of evidence to establish facts that can be presented in a legal proceeding. Though crime scenes and laboratories are perhaps, most often associated with forensics, there is also computer or network forensics, forensic accounting, forensic engineering and forensic psychiatry, among other specialized fields that are today an integral part of forensics. In the United States of America, forensics was a fairly obscure topic for the general public until the double-murder trial of Orenthal James Simpson in 1995. In the historic case that gripped the entire nation, weeks of testimony were heard on DNA blood evidence, shoeprint evidence, fiber evidence and other forensics. Since then, a bevy of forensics-based television shows have regularly topped the ratings, making it a household word.

Those who collect forensic evidence must follow strict procedures to protect the evidence from getting contaminated or destroyed, and must preserve the chain of custody. Since science is unbiased and sound, forensics is considered a very critical part of any investigation. While witnesses may often be mistaken, have credibility issues, hold a stake in the outcome, have fading memories, or even pass away, forensics "tells the same story" no matter how many times it is tested, or how many years have passed.

The field of forensics is so vast that it requires specialists or criminalists at every point of investigation, from tire track analysis, to odontology, to the lands and grooves that make every gun barrel unique. From microscopic evidence and transfer evidence such as fibers and hair, to blood splatter and forensic entomology, there are many fields of specialization within forensic science.

Though forensics deals with circumstantial evidence, it is often widely considered as the best and the most compelling evidence that any prosecution or defense lawyer can have in his or her arsenal. Some people suggest that the public's awareness of forensic science might be potentially compromising to law enforcement, producing educated criminals who might be more apt to try and effect a clean crime scene. Experts generally tend to believe that it is nearly impossible to avoid leaving behind trace evidence at a crime scene, even when extraordinary efforts are made to the contrary.

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