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Role of forensic science
Role of forensic science
Describe the evolution of forensic sciences over time, including the role of key pioneers
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Forensic Evidence is the most critical aspect in a criminal investigation, but it is often underrated. The reason being is that it provided critical details that tells a story of what happened at a crime scene. Forensic science has been around for centuries and has even been used by the Chinese as early as the 6th century. Over the centuries, Forensic Science has evolved and has become more effective in solving every day crimes, to included unsolved crime. Forensic Scientists need to have a vast knowledge in multiple areas of science to be able to effectively analysis evidence. Forensic science uses multiple areas of science to discover different types of evidence and like all other sciences, forensic science is not always right and does have …show more content…
Mathieu Orfila is known as the father of toxicology, because he was the first to study blood and semen stains with a microscope. In the late 1800s Alphonse Bertillon established the first scientific system that was used to identified people though bodily measurements. Francis Galton was the first person to study fingerprints and the first to be able to file them though classification. Fingerprinting would eventually replace the Bertillon identification system in the 1900s. Leone Lattes discovered that blood can be categorized into four groups. Calvin Goddard determined that each bullet fired from a gun is different, like fingerprints. Like fingerprints Goddard determine that bullets found at a crime scene can be compared though ballistics. Albert Osborn was the first person to develop a principle that documented examinations. Walter McCrone furthered the development of microscopic techniques that helped solve crimes by analyzing evidence. Hans Gross was the first to develop principles of criminal investigation. Edmond Locard enhanced Gross’s principles by using the scientific method for criminal investigations. Though all these men, forensic science has developed into a system that is able to use forensic evidence to convict a person that committed a …show more content…
Forensic science is acceptable to human error and is not always perfect. Some of the disadvantages to forensic science is that it is inconsistent. Since forensic laboratories uses different techniques it is hard to have consistent evidence. Since there is no standard on how forensic scientist produce their findings, it causes inconsistency which can affect the case by being misinterpreted. Besides the inconsistency, forensic science need to be precise and accurate in order to provide evidence that will be able to be used. Even the simplest error can have a devastating toll in a case, which could affect the evidence that is brought to court. Some people believe that DNA analysis is unethical because it reveals private information of an individual. Another factor that affects forensic science is that the equipment used are expensive and are always being updating. In order to provide the courts adequate information and precise evidence, it is vital that all the equipment is properly taken care of and updated when it is needed. With all of the disadvantaged that forensic science has, it does have its advantages. Through forensic science, scientist are able to pinpoint an exact cause of death which allows them to determine if it was accidental, homicidal, or natural causes. It also proves the innocence of a person by analyzing the DNA found at a crime scene. Along with
I began this year considering a career in forensics. After delving into the field in detail however, I see that it is a very delicate science and easily open to misinterpretation. There are many variables within forensics, the first and foremost being that of the CSI effect and how it influences our expectations of the capabilities of forensic science. While it's true that great advances have been made in the area of forensic science, it's unrealistic to expect a crime scene to be processed, evidence analyzed and a conclusive forensics report to be completed in a short time and be completely accurate 100% of the time. Forensic science has a lot of room for improvement, and understanding if, how, and why shows like CSI affect the field is of high priority. After all, this is real life and not a TV show.
One scientist was able to tell what a person had done his or her entire life, be it sitting at a desk twenty-four seven or playing professional tennis. The way forensic anthropology is used in an investigation is when a body is found that is beyond recognition, whether it be burned or decomposed. These scientists will clean the bones after a forensic pathologist has looked at the body to see if there are any noticeable differences in the organs or tissues. Once that is done, they will do a facial reconstruction on the skull. Most of the time, this is done to get a positive identification on the body. Then, they will examine the entire skeletal remains, looking for nicks, broken bones, anything that could help identify how the victim was killed. All of these processes take a lot of time to complete, but once they are done, the rewards are worth
Therefore, the criminal justice system relies on other nonscientific means that are not accepted or clear. Many of forensic methods have implemented in research when looking for evidence, but the methods that are not scientific and have little or anything to do with science. The result of false evidence by other means leads to false testimony by a forensic analyst. Another issue with forensic errors is that it is a challenge to find a defense expert (Giannelli, 2011). Defense experts are required to help the defense attorneys defend and breakdown all of the doubts in the prosecutors scientific findings in criminal cases. Scientific information is integral in a criminal prosecution, and a defense attorney needs to have an expert to assist he/she in discrediting the prosecution (Giannelli,
Trace evidence was first discovered by Edmond Locard. Edmond Locard was born in 1877, and founded the Institute of Lyon’s Institute of Criminalistics. He is also known for advancing the science of fingerprints. In 1910 he was authorized to start a small forensic laboratory in the Palais de Justice which he directed until 1951.While there he worked on criminal identification methods including poroscopy- the microscopic examination of fingerprints; analyses of body fluids, hair and skin; and graphometry or handwriting analysis. He is the man responsible for coming up with the theory that when two objects come in contact with each other they leave some kind of material matter behind. This theory was later called Locard’s Exchange Principle. The idea is that the evidence can be used to associate objects, individuals or locations with one another." A person typically loses about 100 hairs a day. These hairs may be of evidentiary value to show contact between two people. With an adequate hair standard, a trace chemist will be able to microscopically compare a...
Once a crime has been committed the most important item to recover is any type of evidence left at the scene. If the suspect left any Deoxyribonucleic acid (DNA) at the crime scene, he could then be linked to the crime and eventually charged. A suspect’s DNA can be recovered if the suspect leaves a sample of his or her DNA at the crime scene. However, this method was not always used to track down a suspect. Not too long ago, detectives used to use bite marks, blood stain detection, blood grouping as the primary tool to identify a suspect. DNA can be left or collected from the hair, saliva, blood, mucus, semen, urine, fecal matter, and even the bones. DNA analysis has been the most recent technique employed by the forensic science community to identify a suspect or victim since the use of fingerprinting. Moreover, since the introduction of this new technique it has been a la...
Forensic Science, recognized as Forensics, is the solicitation of science to law to understand evidences for crime investigation. Forensic scientists are investigators that collect evidences at the crime scene and analyse it uses technology to reveal scientific evidence in a range of fields. Physical evidence are included things that can be seen, whether with the naked eye or through the use of magnification or other analytical tools. Some of this evidence is categorized as impression evidence2.In this report I’ll determine the areas of forensic science that are relevant to particular investigation and setting out in what method the forensic science procedures I have recognized that would be useful for the particular crime scene.
Whereas the real picture of forensic evidence is unlike what is represented in movies and television shows where a fingerprint or a trace of hair is found, then it’s game over for the criminal. Reality is not as straightforward. As more people are exposed to the unreal forensic world through television and media the likeliness for a wrong conviction increases with juries assuming the evidence involves more science than what it really does, this is known as the CSI Effect. Further education and training is needed for the people of the court, the forensic specialists, and so called experts. The people in courts do not question any of the ‘professionals’ and just trust in their expertise. The court could overcome this perception by requiring explanation of error rates in a forensic field. To do this, testing examiner error rates will be necessary which means further research. Forensic science has such a large effect on the prosecution of suspects, experts have been known to provide questionable and at times incorrect evidence. When a false conviction occurs the true perpetrator is set free. Once realized, the public doubts the justice system and the reliability of the forensic evidence even more. At this point in time, forensic is an inexact
White, P 1992, Crime scene to court: the essentials of forensic science, Royal Society of Chemistry, London, p. 20-33.
...uld be “double-blind proficiency tests for forensic scientists” (Bernstein, pg. 462). Another improvement to the system would be creating private independent forensic laboratories, Great Britain and parts of Australia have already implemented this in their practice. Creating several labs in on jurisdiction would remedy the monopoly and create competition; the competition between the different labs may create quality in the terms that each lab will want to produce the best work possible. Sending evidence to various labs could also control the quality of results divergent among the different forensic scientist would be investigated to see where the discrepancy may be. The creation of a nationalized forensic institute, that purpose is to validate and test methodologies and technologies that will create a standardization of data interpretation (Bernstein, pg.462).
Forensic science has now been recognized as an important part of the law enforcement team to help solve crimes and cold cases. The advances in technology are being used each day and we must continue to strive to develop better advances in this field. The recent discovery of using DNA in criminal cases has helped not only positively identify the suspect, but it has helped exonerate hundreds of innocent individuals. “With new advances in police technology and computer science, crime scene investigation and forensic science will only become more precise as we head into the future.” (Roufa, 2017) Forensic science and evidence helps law enforcement officials solve crimes through the collection, preservation and analysis of evidence. By having a mobile crime laboratory, the scene gets processed quicker and more efficiently. Forensic science will only grow in the future to be a benefit for the criminal justice
According to the American academy of forensic science, the forensic sciences form a vital part if the entire justice and regulatory system. Forensic science is an enticing career having to do with science and criminal justice, a large variety of schooling is needed to start this job Despite the fact that it can be a dangerous environment it can be an exciting profession to pursue. There are many different fields in forensic science that you can study or major in but they all have the same objectives.
We do have known what forensics is. Forensics that we know is an application of various sciences to answer questions that are important to legal system in which it may be related to a crime. Forensics generallu covering something or methods of a scientific nature and also the rules established from the facts of the event, to do an introduction to physical evidence. This is just a usual forensics. Nowadays, forensics is not just like that, digital devices are everywhere today, helping people to communicate with other people globally, not just between town. We can use that to do some forensics thing too, and find the evidence. It is called Digital Forensics.
“The word ‘forensics’ means “connected with the courtroom”; so forensic science is, therefore, concerned with gathering hard evidence that can be presented in a trial” (Innes 9). Forensic science is a science that is applied specifically to legal matters, whether criminal or civil. “Few areas in the realm of science are as widespread and important as forensic science” (Hunter 12). Forensics is the one science that is most commonly used in everyday life. It is also a branch of science that incorporates other branches of science such as biology, chemistry, and etc. Since it is used almost every day “No one can dispute the importance of the contributions to society made by forensic science; the ability to solve crime is undeniably important” (Hunter 13). Forensic science has given criminal investigation a new edge. “Advances in science have opened the door for more effective evidence discovery, howev...
The term ‘forensic’ actually means ‘relating to law and science’. In this lesson, we'll review different types of forensic evidence. We will also look at real world cases where forensic evidence was used to solve crimes. !!! Hidden Evidence
Crime today seems as if it keeps getting worse and worse, but without forensic science would we have been able to figure out some of the main details in some cases? Forensic science is any science used to help solve a case/mystery, which is very vital when it comes to criminal investigation research. While researching my project I discovered all the many tasks and difficulties that come with forensics.