Bloodstain pattern analysis

Aims The aim of this practical was to determine the presence of blood on multiple piece of clothing for further analysis by using various preliminary tests and to see the rate and duration of chemiluminesence of the Phadebas paper test. Introduction To a forensic investigation blood is of unparalleled importance, it has multiple functions in a forensic investigation; The book criminal investigation (Christine Hess Orthmann, Kären Hess, 2012) states “blood assists in establishing that a crime…

In order to determine the sequence of events that occurred at a crime scene it is important to be able to determine and identify certain bodily fluids versus non-human substances. Based on the location of the biological evidence and its DNA can provide crucial information about the crime scene, its victim, and the suspect(s). These tests divided between presumptive and confirmatory testing. Blood evidence is the most common type bodily fluid found at a crime scene. Presumptive testing at the…

this taken place the autopsy must be done to determine the cause of death. The blood stained futon is also a piece of evidence that was located at the initial crime scene at the apartment, part of the stain must be sent to the lab for a DNA analysis. The Analysis of Evidence: Marks that are left behind on a bullet it what tells forensic scientist that what type of gun was used in the murder. Every type of bullet leaves behind a certain type…

Through Sociology, not only can we study human social behavior, but we can also aim to analyze the behavior through certain concepts. With the help of media we are able to demonstrate these concepts to give us a more in-depth view of how they function. Both television shows and movies can be great for giving us the illustrations we need to understand an idea. Over the course of the essay, Dexter will be used as a model for some of the ideas focused on in Sociology. Through the concept of…

chapter 2, which indicates the immorality of killing a mother carrying an innocent life in her belly. Before Blake kills his child and the mother of his child, who is clearly just a commodity to him, his blood from her strike recreates the symbolic pattern on the smiley face badge. Moreover, he tries to cover up his immorality by blaming Dr. Manhattan for being a passive bystander when he kills her. However, Blake’s immorality can’t be overlooked regardless of who he blames or the reasons behind…

understand the events that surrounds the occurrence of a crime. If there is a bloodstains then the location and the distribution of the blood stain along with the spatters maybe useful in explaining the events that caused the bleeding. An investigator can decipher from an individual bloodstain, the direction of blood, when it impacted the surface it was deposited on. Bloodstain patterns, consisting of many individual bloodstains…

Bloodstains can be key evidence to a crime because the patterns can be as unique as finger prints by giving direction, height and angel of the blood spatter. Since no one in the world has the same DNA you could figure out exactly who the blood came from and if you know where the killer or victim was you could triangulate the position of the crime. It also can give you a time frame for the crime by the way the blood coagulates and dries. There are three types of bloodstains passive stains,…

It’s Monday, December 9th. Today just seems unusual, like something big is going to happen! I wonder what it will be for a split second, then go back to studying for the Latin America quiz we have tomorrow. Mr. Fielder announces what questions we should highlight on our worksheets. I watch him go back to his desk. I look up and out the window, I see the glistening shimmer of fresh snow dancing in the sky. I cherish every second of it, wishing the time would go by slower. As time creeps closer…

Blood Spatter: Low-velocity blood spatter would be any pattern is produced due to gravity being the only acting force (Gaensslen, Harris, & Lee, 2008, pg. 88). Medium-Velocity Blood spatter is where moderate force is applied from objects which can cause pooled blood to scatter in multiple directions surrounding the contact (Gaensslen, Harris, & Lee, 2008, pg. 89). “High-velocity blood spatter is the where extreme force acting on the blood source (Gaensslen, Harris, & Lee, 2008, pg. 89)." Blood…

Forensic Functioning In America the word forensics proposes crime in a way that excites stories on serial killers, murder, crime scene investigation, and heavy DNA analysis. In reality, this only breaks the ice on what forensic science fully consists of. Forensic science is initially any science used for the purpose of law. The evidence tested is used in the court of law, criminal investigation, and trial. A forensic scientist does perform tests on blood and bodily fluid as well as…