Bloodstain Patterns Analysis Essay

In all of the United States, and maybe all of the world, there is no greater forensic team. Solving seemingly impossible cases, and cases that are not as they seem, the team baffles other leading labs and stuns juries. There is no case that is too difficult for this extraordinary team to solve, no challenge too great.

Bridget Heos proposed that forensic scientists use many different methods to solve crimes. She noted that many crime solvers have written manuals explaining what they think is the right way to approach a crime scene. On page 77 of the book, Blood, Bullets, and Bones, Bridget Heos states, “... Gross urged the use of forensic science experts in murder cases. He said toxicologists, botanists, chemists, and handwriting and firearm experts should all be called on when needed.”

The popular television show, CSI: Crime Scene Investigations has been on the air for 12 years, and it has brought forth the behind-the-scenes actions of criminal investigations, even if its portrayals are not always scientifically accurate. This has caused an interest in the forensic sciences that has led most people to a skewed view of how a criminal investigation actually works. The reality of a criminal investigation is that it is generally more tedious and difficult than the theory of criminal investigation would have you believe. By examining the forensic and investigative procedures of the case of Pamela Foddrill, it is apparent that the theory of criminal investigation was not representative of the procedures concerning examination

In this video Correspondent LOWELL BERGMAN questions the scientific validity of forensic science. He also expresses that it is not as simple as it appears on television shows. Detective. Joanna Grivetti who is a crime scene investigator in Richmond, California explains that the real life CSI is getting dirty, smelling things you don’t want to smell, seeing things you don’t want to see and dealing with blood in order to collect evidence that may seem small at the time, but will ultimately (possibly) be a big deal in solving the case.

Tashanna N Garcia is currently enrolled in the Masters of Criminal Justice, with a concentration in Forensic Science, program at Saint Leo University. Tashanna comes from a military background where she served as an officer in the United States Marine Corps. Her military training was essential to her transition into law enforcement, where she spent the last ten years working for two police departments as a patrol officer and then for the Alabama Department of Public Safety as a Traffic Homicide Investigator for the State Troopers. Tashanna hopes to return to the law enforcement field in an administrative capacity and has a passion for forensic disciplines. Correspondence concerning this paper should be addressed to Tashanna N Garcia,

Blood spatter analysts are a crucial part of a homicide investigation. They examine the blood stains left behind at a crime scene with the help of criminal investigators. They try to find a pattern or trail with the blood to figure out what happened at the crime scene. These blood patterns can show where the victim was hit, how they were hit, if they struggled, and what kind of weapon the killer used. They use many techniques to collect evidence that can be analyzed at the lab. Common techniques are measuring the diameter of the blood drop, measuring the spatter zone, and taking pictures. Many analysts try to act out the homicide scene to piece together the crime scene and figure out what happened. They also sketch out the scene to go along

Forensic science is a key aspect of Criminal Justice that helps rid the streets of lunatics and murderers. One of the most important fields of forensic science is blood spatter analysis. Under the Crime Scene Investigation, analysts gather the information that could eventually lead to a victim’s killer. Basic and complex information can be found when analyzing blood. We can learn what kind of weapon was used, the time of death of a victim and other important facts that can help a case. The pattern that the blood gives off give forensic scientists the tools that they need to help solve cases.

Bloodstain pattern analysis (BPA), known in the criminal justice field as blood splatter analysis, has been studied since the 1890s. Blood splatter, or bloodstain pattern constructional readings, is a technique that seeks to piece together the incident that caused an individual’s bleeding. Understanding blood splatter on a wall or various surfaces can be instrumental in formulating if a crime was committed and if the blood discovered at the crime scene can be used as evidence. The first documentation of blood splatter research occurred at the Institute for Forensic Medicine in Poland, by Dr. Eduard Piotrowski . During Dr. Piotrowski’s research and documentation period, where he used live bunnies to research blood splatter from head

The world of Forensic Scientist is an amazing and fascinating place. 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.

The understanding of blood spatter patterns is not a widely recognized forensic practice. Bloodstain pattern interpretation (BPI) is commonly used in murder investigations, but could be utilized in everything from simple assault to mass murders if the number of trained professionals increased. BPI can reveal critical information into reinventing a given crime scene. Everything from the number of blows, stabs or shots a victim was given, the movement that was undergone by the victim and assailant after bloodshed began, position of objects at the crime scene and the type of weapon, if any, that was used can be uncovered.

Have you ever wondered how much a single blood splatter could impact a whole crime scene? In January 2004, Sachs and Jessica Snyder wrote an article titled, Blood is the Ink, Crime is the Story, which could be found in “Popular Science”. Blood spatter tells more of a story than most individuals know, including detectives and crime-scene analysis. A blood stained analysts, Paulette Sutton, informs those who do investigate crime how important a single blood stain is. An average everyday person could easily tell which direction the blood stain came from, and what height it had fallen from, nevertheless there is still more to the story.

The Louisiana State Police Crime Laboratory was developed to provide the highest quality of professional forensic services to the State of Louisiana. The commitment of the agency includes applying sound scientific principles in all analyses, being responsive to our customers, conducting our operations in a fair and objective manner, and being a leader in advancing forensic science. The mission of the laboratory is to assist all of the local, state, and federal law enforcement agencies in Louisiana in the investigation of criminal activity (Office of Public Safety Services, 2015). The agency is also committed to providing accurate and timely scientific analysis of items of physical evidence and reporting the results of those analyses to appropriate entities in the criminal justice community.

Moving forward to questions of blood spatter interpretation, historically a subjective area of practice, the work of Trombka et al. (2002) sheds important light on how computerized analysis can now lead to the automation of many elements of blood spatter analysis. This is incredibly beneficial, for this particular CSI technique, because of the fact that computerized analysis brings about the type of parsimony, associated with rigorous hard sciences, which increases a discipline’s credibility in a court-of-law. Indeed, and because computerized spatter analysis will inevitably bring about greater reliability in spatter analysis, inasmuch as cases will now be analyzed in identical ways by different analysts, the discipline’s probative relevance to court cases is likely to be increased dramatically.

Today, more than ever, the quality of evidence in criminal cases is scrutinized because of contamination. Contamination is the introduction of something that physically corrupts a substance at a crime scene that was not previously there; it comes in many forms and most often times comes from the humans who investigate a crime scene. It is imperative that prevention of cross-contamination is implemented when gathering evidence. Several of the more sensitive forensic techniques such as trace analysis, bloodspatter interpretation, and DNA comparison are not being used to their fullest potential. Items of physical crime scene evidence are not always visible to the naked eye and may be easily overlooked so deliberate and methodical approach to collection and preservation of evidence is essential. Prosecutors have lost cases due to crime scene contamination; this could be prevented by simple and productive behaviors. The U.S. Supreme Court, in a leading case on physical evidence, stated:

The bloodstain pattern that is on this towel is a part of the class and individual characteristics. The reason this bloodstain is apart of both characteristics, because for the class characteristics,