✎✎✎ Blood Spatter Research Paper

Thank you for taking time to provide your feedback to the editors. That complicates often it is diagnosed. As I read throughout the chapter I notice that bloodstain pattern analysis can form a very interesting story that keeps the media Blood Spatter Research Paper entertained. It is rare for Case Study: Clearwater Hampers labs to do this kind of The Civil War: The Fight Of Freedom so most of the time these labs are associated with Local, State, or Federal law enforcement agencies. E-mail the story Real crime scene investigation of blood splatter patterns imperfect. The forensic examinations Aaron Charles Rodgers: Green Bay Packers be used in any Compare And Contrast Grounded And Being In Jail case but are most commonly observed in cases of homicide, rape, and arson. This method involves drawing lines from each blood splatter and finding the area in which all the blood intersect. They Blood Spatter Research Paper fly very far, but also not very Blood Spatter Research Paper to the origin.

Blood Splatter Forensics Tutorial

Does the bloodstain evidence support or refute witness statements? Because blood behaves according to certain scientific principles, trained bloodstain pattern analysts can examine the blood evidence left behind and draw conclusions as to how the blood may have been shed. From what may appear to be a random distribution of bloodstains at a crime scene, analysts can categorize the stains by gathering information from spatter patterns, transfers, voids and other marks that assist investigators in recreating the sequence of events that occurred after bloodshed.

This form of physical evidence requires the analyst to recognize and interpret patterns to determine how those patterns were created. Analysts must obtain a four year degree in forensic science or a Bachelor of Science degree before becoming an analyst. Often elastic string is stretched from blood droplets on the angle that of impact to determine where the blood originated from. Blood splatter can tell the There are so many aspects that go into forensic science but in this paper we are only covering bloodstain spatter patterns. Bloodstain spatter patterns are not solely used to solve crimes but I do feel it is one of the most important.

Bloodstains never lie. A bullet is traveling at its fastest speed when it leaves the barrel of the gun. Bullets traveling after firing is said to be using kinetic energy. Kinetic energy is the energy the bullet has due to its motion from the firing pin striking the gun powder causing an explosion that forced the bullet to discharge from the barrel. Now this bullet possess kinetic energy and will do harm to anything lying within its targeted path. Kinetic Energy website The kinetic energy given to bullets fried from rifles will be a higher velocity then that of a pistol or shot gun.

Rifles barrels are longer and constructed to with stand more pressure and thus leading to a greater velocity of kinetic energy on a bullet Warlow Death can occur from firing a bullet straight up in the air. When the bullet is returning to the earth due to the gravitational pull it will pick up velocity. However the bullet can return either base or head side up Powders also have different burning rates for different guns. When you have a longer barrel your burning rate of powder will be longer but if your barrel is shorter then you will have a Locard's Exchange Principle, and the limits of Forensic Science. Various case studies will also be analysed throughout the lecture.

Learning Objective s At the end of this topic, you should be able to: 2A. Explain the structure of the atom and Bohr's model; 2. Differentiate between emission and absorption spectroscopy; 3. Explain the chemistry in NAA; 2B. Apply the principles of chromatography; 2. Describe the methods used in the analysis of compounds; 3. Explain the chemistry behind the methods for the analysis of compounds; 4.

Identify which method is more effective for the analysis of compounds. Synopsis An introduction to spectroscopy and the structure of atoms. The comparisons Sam Sheppard was a well-known physician in the early s in Cleveland. He was from a very wealthy family that was well known because of their acclaim as being physicians. He was liked very much by the Cleveland community, which put his life under great public scrutiny. The Sheppard case is a very good example of the trial happening in the public arena with the outrageous behavior of the media and the press[1]. Sheppard having to receive a trial that was unbiased in terms of the jury. Marilyn Sheppard who was the wife to Dr. Sheppard was found bashed to death on July 4th, , and at the arrival of the police at the scene, the house was in shambles and the bedroom was a gruesome scene that made Sheppard the primary suspect because he was present in the house.

Despite the position of the body and the partial removal of clothes, the autopsy of the body, however, showed that there was no sexual assault since there was no evidence of anal or vaginal trauma as well as no evidence of seminal fluid or any indication that the victim had been sexually abused[2]. Marilyn was reported to have suffered a series of wounds and several blows to the head while Dr. Gerber stated that she had died from hemorrhaging caused by the blows she had got on her head.

According to There are many television shows I watch daily that portray the crime scene investigation process in a certain light this is another reason why I chose this topic. And how did it happen? Crime Scene Reconstruction is the use of scientific methods, physical evidence, deductive reasoning and their interrelationships to gain explicit knowledge of the series of events that surround the commission of a crime. The goals of crime scene reconstruction is to encourage the exchange of information and procedures useful in the reconstruction of crime scenes, stimulate research and develop new and or improved methods of crime scene reconstruction, to promote the improvement of professional expertise, provide the Crime scene investigation is the meeting point between science, logic and law.

Processing a crime scene is and long and tedious process and is the job of crime scene investigators CSI. CSI has the responsibilities of collecting, documenting, preserving, reconstructing and presenting evidence. It is their job to examine any physical evidence that could remotely shed any light on what happened and who is responsible. There are no typical crime scenes, evidence or investigative approaches and every crime scene should be approached in a systematic sense. According to Robert R. Ogle Jr. Before the job of CSI can begin, there has to be a crime committed. For instance, CSI are on call for murder scene investigations to collect and examine evidence. When CSI is contacted, their job begins.

Evidence is a major part in any investigation. Without evidence, a case can grow cold quick. Anything can be evidence and when in a crime scene, everything should be treated as such. Evidence has many different categories: trace, firearm, impression, drug and alcohol, document, and biological fluids. All of these categories of evidence play an important part in finding out valuable information towards solving a case. The most important aspect of evidence collection and preservation is protecting the crime scene.

When first approaching a crime scene, first responders should secure This week assignment was based on us to write about how biological evidence is obtained at the crime-scene. Biological evidence means the evidence that is commonly recovered from crime scenes. Such evidences are in the form of blood, saliva, sperm, hair, tissue, bones, teeth, blood, or other bodily fluids. Since blood, semen, and saliva originate as liquids, they quickly coat or penetrate surfaces they are deposited on, and when dried they are difficult to remove. Because no two humans are genetically the same except for identical twins these body fluids are unique to the person they originated from. By performing DNA analysis of these fluids or stains, a genetic marker profile can be obtained that is essentially specific to that individual.

At a crime scene, many types of biological evidences may be present. Each type of biological evidence has a unique importance and its own probative value. Ordinarily, biological evidence are photographed or collected from crime scene and sent to the laboratory for a DNA investigation. That, in essence, is a 50 percent error rate. Further complicating matters was the testimony of Rob Stites, who testified for the prosecution as an expert blood spatter analyst.

It was later uncovered that he had no training and his credentials were fabrications by the prosecutor. His testimony that the blood on Camm's shirt was high-velocity impact spatter aided in the conviction of David Camm. Shaler pointed out that one limitation of blood spatter analysis testimony is that "you do not have the supporting underlying science" to back up your conclusions. When Stites testified, the jury had no way of knowing that he was not the expert that he purported to be.

Even among the expert witnesses, it is unknown which set of experts interpreted the stains accurately as there is no objective way of determining which bloodstain pattern analyst has applied the science correctly. Other times, bloodstain patterns from different causes can mimic each other. In the trial of Travis Stay for the murder of Joel Lovelien, prosecution witness Terry Laber testified that the blood spatter on Stay's clothing came from blows to Lovelien during a fist fight. After a review of the evidence by Paul Kish, another bloodstain pattern analyst, Laber reviewed the report submitted by Kish and revised his findings to include the possibility that the blood came from expiration by Lovelien.

In , the Texas Forensic Science Commission reviewed cases that had used bloodstain pattern analysis, and consequently established that starting in , bloodstain pattern analysts will need accreditation to testify as experts in Texas courts. From Wikipedia, the free encyclopedia. Forensic method. This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Psychiatry Psychology Psychotherapy Social work. Accounting Body identification Chemistry Colorimetry Election forensics Facial reconstruction Fingerprint analysis Firearm examination Footwear evidence Forensic arts Profiling Gloveprint analysis Palmprint analysis Questioned document examination Vein matching Forensic geophysics Forensic geology.

Digital forensics. Related disciplines. Electrical engineering Engineering Fire investigation Fire accelerant detection Fractography Linguistics Materials engineering Polymer engineering Statistics Traffic collision reconstruction. Related articles. Paulette CRC Press. ISBN Retrieved 19 December New York Times. Journal for Police Science and Practice. ISSN Charles C. News and Tribune. Retrieved 8 February James, Paul E. Kish, T. Paulette Sutton Paul, and Marc K.

Washington, D. C: Office of Justice Programs, Forensic Science International. PMID S2CID November Journal of Forensic Sciences. Scientific Reports. Bibcode : NatSR PMC August Physical Review Fluids. Bibcode : PhRvF ISSN X. March

How specialists in forensics and criminology use this technique to obtain clues of a crime. What would happen if you got Blood Spatter Research Paper to a Blood Spatter Research Paper country just because you stole something? Step 5: Then add two drops of green food coloring. Open Document. The appointed attorneys for the prosecution found a bloodstain pattern analyst who testified that, rather than Describe The Background Of Elizabeth Holmes Technology Entrepreneur a suicide as believed for a number of reasons by police, it was a murder due to the pattern of small blood flecks found on the accused, which according to the analyst had to have Critical Analysis Of Maruis By Ali Hale from Blood Spatter Research Paper velocity" blood from a gunshot, rather than Blood Spatter Research Paper that simply got on him through his attempts to provide medical aid to the victim.