Forensic biology will provide critical leads concerning the people who committed the murder. By examining the DNA evidence obtained from the crime scene, the law enforcement officials can be able to identify the suspects (Kayser, 2017). Identifying the suspects will require the law enforcement officials to match samples of possible suspects with those obtained from the crime scene. A non-match could be a strong indicator that the suspect was not involved.
Number of suspects can be narrowed and finally solve the cases by analyzing the crime scene features. Muller (2000) describes the information which the criminal profile uses is often taken from the scene of crime, profilers will take into consideration with
According to Kleck et al; (2006) “survey research is the dominant method of collecting information followed by use of archived data.’’ Furthermore, the most important sources of crime information in U.S criminal justice system are the FBI’s Uniform Crime Reports (UCR) and the BJS’ National Crime Victimization Survey. Keywords: research methods, survey methods, sampling, types of surveys Introduction During a research exercise the data collected can be either qualitative or quantitative gathered from observations. Examples of quantitative data recorded in numerical values are survey research, field research, evaluation
This paper will talk about how forensic science goes hand in hand with criminal investigations. This paper will also take a look into the different ways that forensic science helps aide criminal investigations, specifically in the area of forensic medicine and criminalistics. This paper will also talk about how forensic science has come a long way and how it helps investigators catch perpetrators. Forensic science has also helped free innocent people who didn’t commit the crime that they were imprisoned for. Lastly, this paper is going to explain what the purpose is for criminal investigations.
However, not all forensic scientists are the same. Criminalists/crime scene investigators are a general name for forensic scientists. Forensic biologists/chemists are scientists who deal more on the DNA, chemical and other substance side of the crime scene investigation. Forensic computer examiners or digital forensic analysts deal more with technology based crimes like hacks, scams and identity theft. Overall, forensic scientists are able to collect information and use it to help solve or further investigations.
In a study, 77.2% of profiling reports provided by the FBI was indeed considered useful in providing an outside perspective on a case and in helping to focus on the investigation. Criminal profiling may be misused by several law enforcement officials but you can not deny that has been a legitimate investigation tool for many years. With the progression of criminal profiling there is going to be misuse and misconceptions however, you can’t discredit the beneficial analysis that profiling brings. It’s efficiency in providing insight to the investigators showcased how a setback like racial misuse won’t interfere with getting the crime solved at the end of the
Forensic anthropology is the branch of anthropology which deals with the recovery of remains as well as the identification of skeletal remains which involve detail knowledge of osteology (skeletal anatomy and biology). In other words, forensic anthropology is the application of anthropological knowledge and techniques in the identification of human remains in medico-legal and humanitarian context. Forensic anthropology includes the identification of skeletal, decomposed or unidentified human remains. Forensic anthropology may also help determine the age, sex, stature and unique features of deceased from their remains. Personal identification is one of the main aspects of medico-legal and criminal investigations.
Ever since the role of genetics in crime was accepted (Joseph,2001), several questions have been raised regarding the validity of this theory and whether a person can really be excused from committing a crime, no matter how heinous it is, just because (s)he possesses a gene that causes him (or her) to go down the road of crime? And can the crime in this world actually be curbed by curbing the reproductive abilities of those possessing the “criminal gene”?
It has been said to have revolutionized forensic investigations. Deoxyribonucleic acid profiling has been used to exonerate the wrongly accused, convict the correct criminal, and even do something as little as finding out who the father of a child is (Roewer, Lutz). Deoxyribonucleic acid today can be obtained from processing bodily materials such as spit, semen, or blood. Because of the fact that all cells in the human body contain a nucleus and nuclei contain DNA, virtually any evidence left behind that is a bodily fluid can be tested for Deoxyribonucleic acid to help tie or eliminate those from a crime
It is based on extremely sensitive PCR techniques. Using DNA evidence suspects can be linked to crime scenes from as little as the skin cells on a steering wheel or saliva on a cigarette butt. DNA based forensic methods are much more efficient than the conventional methods because of so many obvious reasons. Cases could be solved even investigations begun after decades by analyzing DNA from degraded samples. Moreover, it is possible to deduce phylogenetic/evolutionary relations through DNA based forensic methods.
From Crime Control to Crime Management: DNA and Shifting Notions of Justice." The Genetic Imaginary"The test was inconclusive for the man with whom the woman acknowledged having intercourse. In vacating May 's conviction and getting a new trial, Judge Roger Crittenden concluded the results of the tests that are of such decision, value, or force that it would probably change the result if a new trial should be made.May was released from the Kentucky State Penitentiary at Eddyville.One of the main reasons DNA analysis can be helpful to forensic scientists is that in some of the tissues, mitochondrial DNA is in excess and compared to DNA. DNA evidence is generally linked to offender profiles through the DNA databases. In the late 1980s, the federal government laid the groundwork for a system of the national state, stored local DNA databases for the storage, and exchange of DNA profiles.
The forensic scientists would apply the principle of blood spatter analysis. Blood spatter analysis is the interpretation of bloodstains at a crime scene in order to recreate the actions that caused the bloodshed. By using the analysis they observe the spatter of the blood, the investigators and forensic scientists can determine how the victim was wounded, what weapons were used and where the object hit the body. Evidence is really important because it can be either stopping the criminal or letting him