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forensic science institutitons and criminal investigation
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The scientific method in criminal justice field is valuable information from physical evidence that investigators take from the crime scene. With scientific methods it helps investigators to produce a probable explanation for the crime event in which they are investigating. For experts they use the scientific method for things such as DNA samples from hair and body fluids, fingerprint analyses and weapons or clothing fibers. They use the scientific method in systematic way to observe, think and resolve problems. With the scientific method you have four steps to follow which include defining the problem, formation of hypothesis, data collections by observing and experimenting. At all stages of the investigation you have to constantly …show more content…
They must always make sure the evidence supports the hypothesis, if not they must start back over.
For me I feel that if there was no scientific method it would make the job of criminal investigators and even forensic examiners jobs a lot harder. What would happen if we had no scientific methods? Many crimes and cases in the world would go unsolved. If forensic experts had no scientific methods when examining crimes scenes or looking at evidences in labs then many cases would be lost in court. They wouldn’t have the evidence to back their case up. Experts in the criminal justice field wouldn’t have answers or have leads to criminal cases if they didn’t have ways to figure it out. The scientific method is a search of knowledge for the experts of the crime. With the scientific method they can follow the steps to examine the evidence and prove the guilt of the suspect. With have the scientific method it also helps support and back up there observations as to what they are saying happened. So without the scientific method in the criminal justice field a lot of crime would go unsolved and criminals would be walking the streets
The book gives a general overview of the field of forensic science. The sections of the book include “The Scene of the Crime; Working the Scene--The Evidence; Working the Scene of the Body Human; Working the Scene--Different Stages; and Working the Scene--Different Skills (Genge vii-viii). Included are instructions on what professionals should do upon arriving at a crime scene, what items to bring with them, how to protect the crime scene, and how to protect the evidence from contamination. In addition to writing about the subject of forensic science, the author also included several appendixes and suggested readings to help the reader learn even more information about the subject. In addition, the author included a list of colleges that offer programs in the field of forensic science.
Evidence analysis and ranging is the most crucial stage of investigation. The success of the case exposure lies in the gradual evidence research and collecting prior to the laboratory analysis. The CSI systematically makes his way through the crime scene collects all potential evidence, tagging, logging and packaging so it remains intact on its way to the lab. Depending on the task breakdown of the CSI unit he may or may not analyze the evidence in the lab.
Picture this: you walk into a crime scene and the first thing you see is blood. It is all over the walls, the floor, and even the ceiling. Now any other person would probably not know the information that this evidence holds, but those that have studied blood, how it works, bloodstain patterns, and what they all mean, have an abundance of evidence to examine. Just from looking at the bloodstain patterns, they can discover many things about the crime and how it occurred.
Brief history of Forensic, it surfaced in the state of San Francisco in the 1850’s systematic photography was being used to obtain criminal identification. Later on in the 1920’s “Los Angeles Police Department established the first police department crime laboratory in the United States (Forensic science timeline (n.d). Forensic continued to progress over the years to became one of the most innovating fields in the criminal justice system. Forensic help in the prosecution of many cases as well as exclusion of the wrongfully accused (Forensic science timeline (n.d). Forensic tech work primarily for local governments and state in police departments, coroner offices, and crime laboratories. This field is a combination of lab and field work the best of both worlds (Career guide for forensic science technician (n.d). This is what makes Forensic Science Technician the field of interest; the customary duties of a forensic science technician consist of gathering evidence, investigation of evidence collected, and reporting their discoveries in writing and may also be called into a court of law (criminal or civil laws) to present their finding before a judge (Career guide for forensic science technician (n.d).. There are several different areas of expertise in the field of a forensic technicians are often responsible or specialize in particular types of evidence such as biochemistry, ballistics, fingerprinting, and handwriting analysis. It has been said that forensic science technicians are mostly call upon to assist in two places on crime scenes and in crime labs (Dillon .H, 1999). Crime scenes contains that valuable evident that must be careful collected and preserved to help with the reconstruction of crimes by theorizing the events ...
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,
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
Hundreds across the nation watch forensic shows every day. From fictional shows similar to Criminal Minds and CSI, to nonfictional shows such as The First 48 and Forensic Files. However, these shows have something in common. Criminological programs continuously show how the crime happened, what it takes to crack the case, how investigators accumulate evidence, a...
The Scientific Method, as it is called, has existed for quite some time. Throughout human history scientists and mathematicians have followed the basic rudiments of the Method, although they were seldom documented and rarely followed the Method exactly. The term 'Scientific Method' was first coined by Italian doctor Francesco Redi in the late 17th century, following his experiment which disproved the spontaneous generation of maggots on decomposing trash. He first observed that maggots seemed to 'magically' form on decomposing meat, and hypothesized that this was not true. In his experiments, he had three pieces of meat, one in an open container, one in a container w...
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.
results of the forensic anthropology. For instance, if a crime is committed at a certain scene,
In today’s time, modern Crime Scene Investigation has increased rapidly. From throughout the late 1900’s and in the early 2000’s (Taylor 1). For all of the evidence that they find, a solid foundation has formed over the thousands of years of Crime Scene
The transitional growth in the forensic science sector has not been without challenges. Though the world has experienced increased capabilities and scientific knowledge, which has led to faster investigations and results, many forensic experts have argued that forensic laboratory testing, in the light of 21st century technological advancements, is yet to meet the expected rate in quick available testing and analysis (Mennell & Shaw, 2006). This is with respect to the growing rate of crime and the high demand of quick crime scene testing and analysis. In the science of crime scene, analysis and interpretation of evidence is majorly dependent on forensic science, highlighting the change in the role of forensic sciences (Tjin-A-Tsoi, 2013). In the business of forensic science, time is beginning to play important role in the evidence testing and analysis which is becoming crucial in reducing ...
Since homicide is a crime in which a life has been ended, it is highly important the investigation surrounding a homicide be taken seriously and be completed effectively. That is, it is critical for the investigator(s), and other branches of the investigation, to be highly trained in preserving a crime scene, as well as interpreting the evidence left at a crime scene, or surrounding the investigation. There are various techniques available to aid in the examination of a homicide crime scene, but none more importantly than what could be told be the body.
Forensic science has paved the way to a new world of technological advancements in solving crime, through DNA analysis, new technology such as M-Vac, improving systems such as CODIS and other investigative methods. As forensic science technology advances, the chance of an individual being able to commit a crime and walk away free without leaving any trace of evidence will lessen. While forensic science has its limitations, it can be the only way to provide an accurate account of what actually occurred at some crime scenes.
Everyday psychologists, chemist, biologists, and other professionals use the scientific method to guide us through the research being conducted. In this case, I would use the scientific method to help guide me in running a successful research study to help determine the accuracy of a polygraph exam when knowing the exam can exhibit false results. Professionals would make observations, gather information, form theories, test predictions and interpret results all which is the standardized way of the scientific