Forensic evidence

“Blood is one of the most significant and frequently encountered types of evidence associated with the Forensic Investigative of death and violent crimes” (James, Kish, and Sutton, 2005 p. 1). A Bloodstain Pattern Analysis is called when bloodstains are found at a violent crime scene. The Bloodstain Pattern Analysis discipline has been in existence for a long time, as early as the late 1800’s. “Bloodstain Pattern Analysis focuses on the analysis of the size, shape, and distribution of…

the crime itself. There are many components of crime scene investigation and each is critical to ensuring accurate evidence is gathered from the scene. This paper will discuss the steps in the crime scene investigation process, the different types of investigations for different types of crimes, and finally see the process in action in the form of a case study where crime scene evidence was instrumental in ensuring the correct individual was held accountable for the crime committed against two…

Trace Evidence: Hair & Fibers Analysis Trace Evidence Defined as materials that could be transferred during the commission of a violent crime, trace evidence consists of multiple sources of which include hair, fibers, soil, gunshot residue, among many more. Trace evidence can be transferred between people, objects, or the environment during the commission of a crime (Federal Bureau of Investigation, 2016). This idea is known as the Locard exchange principle which is the idea that whenever…

A vital tenet of forensic science is the exchange principle first proposed by Edmund Locard, which can be generally understood as the phrase “with contact between two items, there will be an exchange.” Every time there is a contact between individuals, environs and articles, there is an exchange of physical evidence, however small it may be. This aspect plays an indispensable role in crime scene investigations as it enables the detectives to establish links between the crime scenes, victims and…

Analysis “What processes must be undertaken to analyse bloodstain patterns at a crime scene for the purpose of presenting this evidence at a criminal trial under South Australian law?” Blood. Sticky, hot, messy, awful blood. For most of us, the sight of it turns the stomach, but in the court of law, blood can tell a lot more about a crime scene than you might think. Forensic bloodstain pattern analysis (BPA) is the interpretation of bloodstains for the purpose of reconstructing the events that…

Anthony’s remains were found. Alone, weak, and frightened Caylee could not over power her murderer. Only one person knows what truly happened to Caylee that day, her mother Casey Anthony. The evidence found at a crime scene can be used to provide visual evidence. Evidence used should be used with wisdom. Visual evidence helps the jury gain a better understanding of what took place during that time. People can’t go to trial without some type of presentation such as animations, graphics, and…

The field of forensic science seems like a captivating world. It is known that forensic scientists assist law enforcement agencies by collecting and analyzing the evidence of a crime scene. Most of the time, this is all a person knows by watching television shows, such as “NCIS.” There are many misconceptions of a forensic scientist created by television shows. Sometimes these misconceptions make forensic science look glamorous. The issue is that this is how it happens on television and in…

Crime scene investigation is the processing and analysis of evidence. As a CSI, ones job is to collect all the evidence that is important to a case to help make sure the proper verdict is found. The evidence can range from physical evidence to photographs, or even to fingerprints. Everything at the crime scene must be properly documented, handled, and secured to assure that everything can be upheld…

reached a guilty verdict on August 12, 1991. ¨Eduardo Velasquez’s case was accepted by the Innocence Project in February 1998. The Innocence Project and Sam Silverman, Velasquez’s attorney and long-time advocate, filed a motion to gain access to the evidence for DNA testing. The results excluded Velasquez, who was exonerated and released on August 15, 2001 (¨More than 2,000 wrongfully convicted people exonerated in 23 years, researchers say¨). The Innocence Project has done wonders for the…

Physical Evidence Which Should You Believe In some trials you may hear about physical evidence, and hear from eyewitnesses from the crime. While Physical evidence is evidence that is collected from the scene of the crime, or found on a victim. Physical evidence can be scientifically tested, and sometimes compared against a suspect. Witness testimony primarily relies on that witness's memory, and hopefully their attention of detail. If you are a jury member how can you determine which…