The development of forensic science has given us the important techniques of fingerprinting and DNA analysis. We can use these techniques to catch criminals, prove people's innocence, and keep track of inmates after they have been paroled. There are many different ways of solving crimes using forensic evidence. One of these ways is using blood spatter analysis; this is where the distribution and pattern of bloodstains is studied to find the nature of the event that caused the blood spatter. Many things go into the determination of the cause including: the effects of various types of physical forces on blood, the interaction between blood and the surfaces on which it falls, the location of the person shedding the blood, the location and actions of the assailant, and the movement of them both during the incident.
This paper explores deoxyribonucleic acid (DNA) collection and its relationship to solving crimes. The collection of DNA is one of the most important steps in identifying a suspect in a crime. DNA evidence can either convict or exonerate an individual of a crime. Furthermore, the accuracy of forensic identification of evidence has the possibility of leaving biased effects on a juror (Carrell, Krauss, Liberman, Miethe, 2008). This paper examines Carrells et al’s research along with three other research articles to review how DNA is collected, the effects that is has on a juror and the pros and cons of DNA collection in the Forensic Science and Criminal Justice community.
Forensic science has played a great role in finding evidence for crimes in history because it helps find the person who did wrong, the perpetrator, and it helps bring justice to the case. Forensics now are better than before because technological advances like DNA testing has been made, which takes forensics to a whole new level. What is DNA? DNA is deoxriybonucleic acid which is a molecule that is in a double-helix structure described by James Watson and Francis Crick in 1953. DNA contains our genetic code which is composed of triphosphate molecules, which are also known as the ‘building blocks’ of DNA.
Police were able to apprehend to criminal [Colin Pitchfork] by obtaining a sample of semen that was left at both crime scenes. DNA Fingerprinting also helps exonerate (to clear or absolve from blame or a criminal charge) people. The first “criminal” to be exonerated was Richard Buckland; he was the primary suspect of a serial murder case. With the use of DNA Fingerprinting the police were able to determine that Buckland committed none of the murders and was set free (DNA Fingerprinting). “The blotting is procedure is named differently depending on the type of ... ... middle of paper ... ...hese vicious crimes will generate fear amongst civilians and citizens; this will also put much pressure on police departments to distinguish and apprehend the perpetrator(s).
It is possible to find the weapon used, number of wounds, trajectory, direction of travel, and how the events unfold in a crime. It can interest very many people, but can also freak them out. Blood spatter pattern analysists are one of the most important people to finding the criminal who has done the crime. There are many things blood spatter analysists are responsible for, including responding to crime scenes, interacting with biohazardous material such as blood and body fluids, taking photographs, collecting samples, writing reports, and testifying in court (“Balance”). Blood spatter requires a strong background in scientific studies, and a bachelors degree in one of the natural sciences.
Criminal profiling has become a very popular and controversial topic. Profiling is used in many different ways to identify a suspect or offender in a criminal investigation. “Criminal profiling is the process of using behavioral and scientific evidence left at a crime scene to make inferences about the offender, including inferences about personality characteristics and psychopathology” (Torres, Boccaccini, & Miller, 2006, p. 51). “The science of profiling rests on two foundation blocks, basic forensic science and empirical behavioral research. Forensic science includes blood spatter analysis, crime scene reconstruction, and autopsy evidence.
The three types of fingerprints that can be taken fr... ... middle of paper ... ...ontact with. A fingerprint can be very good evidence in an investigation. This technique has helped the law enforcement tremendously because of how easy it is to identify whose prints were on scene at the crime, and then hopefully it results in arresting the criminal for their wrong doing. Works Cited "Fingerprinting." Fingerprinting.
In this paper I will discuss the different kinds of trace evidence and how crime scene investigaros use it to solve cases and convict criminal. 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.
Some of the most interesting and unusual killers will be identified by profiling. Senior Experience Capstone will allow the students to see the connection between the learning and the future steps to the goal. Criminal profiling is the system known by the Federal Bureau of Investigation (FBI) as an investigative analysis. FBI agents are highly disciplined in law enforcement. Criminal profilers study every behavioral aspect and the details of unsolved crimes in which certain evidence has been left at the scene.
Each person has an individual print which is why this is a very useful piece of evidence. Sir Francis Galton found that the prints could be categorized into different types as well as different groups. The research of fingerprints from decades before has shaped the way detectives identify suspects and victims. Fingerprint usage dates back to the 1800s. Sir William Herschel used the prints as signatures on civil contracts, before they were found useful towards crimes (History of Fingerprints Timeline, 2012).