In this case study I will examine the forensic evidence (limited to the main ballistic evidence), that was presented in the criminal trials and the forensic evidence that was introduced by the prosecution.…
Evidence at a crime scene, such as blood, DNA, fingerprints, or shoeprints all help forensic investigators determine what might have occurred and help identify or exonerate potential suspects.…
1) There are many things that can make a dental pattern unique, but reality is everyones teeth markings are different. After biting into the Styrofoam cup you could identify whos impression was who’s by looking at the width and length or the marking, also the deepness.…
Forensic evidence has been used since the beginning of investigating. It could be anything from ammunition, to a handprint on the door, to the drops of blood on the crime scene. As seen in “Forensic Evidence” by Andrea Campbell, the indisputable forensic evidence is the best kind to use in a trial.…
When they arrive at a crime scene after everything happen they have to look after evidence such as: blood and other body fluids, hairs, fibres from clothing, paint and glass fragments, tyre marks, flammable substances used to start fires, analysing fluid and tissue samples for traces of drugs and poisons, analysing handwriting, signatures, ink and paper, recovering data from computers, mobile phones and other electronic equipment. Most of the evidences are usually presented in writing as a formal statement but the forensic scientists may have to go court to give their evidence in person.…
Crime scene investigators oversee a myriad of complex crime scenes such as armed robberies, home invasions, homicides, sexual assaults, and other property crimes. The CSI created a crime scene perimeter before investigating. CSI is responsible for collecting, documenting, securing, and properly storing all of the evidence found at a crime scene. Processing a crime scene can be a tedious process that takes several hours, and CSIs must pay careful attention to every detail to avoid overlooking critical evidence. The entire scene can and will be photographed, either by the CSI, as the evidence is collected. CSIs must follow strict protocols for collecting trace evidence such as hair, fibers, glass, paint, or dirt in order to maintain integrity of the chain of evidence. They record each item that found, including its location and any other pertinent information, and catalog and seal the item for transportation to the lab.…
How does trace evidence end up transferring to the crime scene, suspect, or victim? Discuss some of the ways that this might happen.…
Evidence can be as diverse as people; however, when looking to collect any type of evidence, it will typically be separated into one of two categories: real evidence or testimonial. Real evidence is considered to be tangible, such as, it will be anything that the five senses can perceive (Worral, Hemmens, & Nored, 2012, p. 71). Articles of clothing, weapons, contracts or legal documentation, and photographs are all examples of tangible / real evidence. Additionally, within this same category of real evidence, “demonstrative” evidence will also be included. This type of evidence would be anything that can actually demonstrate the crime and/or scene. For example, a technician…
There are many ways to collect evidence. The different collection methods depend on the type of evidence being collected. All evidence should be secured and documented as soon as possible with the proper collection techniques. In this lab, i was responsible for the unknown brown fibrous strands (hair). It was found in on the sofa across from the possible murder weapon.…
The search for physical evidence at a crime scene must be done thoroughly and followed by the protocol. How the criminalist will decide to execute the crime-scene investigation depends on the size and the locale of the area, as well as on the actions of the suspect(s) and victim(s) at the scene. It must be considered that physical evidence can be anything, from a massive object to a microscopic trace, however, some evidence are clearly visible but others need to be examined in the laboratory in order to be detected. Physical evidence must be processed in a way so as to prevent any change from happening between the time that was collected on the crime scene and the time it is received by the laboratory. When collecting physical evidence from a scene, any criminalist must be aware of the fact that recovery of one type of evidence can destroy another.…
Evidence is a type of proof. It is usually used to prove someone innocent or guilty. There are many different types of evidence, such as: testimony, direct, circumstantial, and physical evidence. However, according to the article “Forensic: Evidence, Clues, and Investigation” by Andrea Campbell, forensic evidence is the best evidence to present at a court case or trial.…
The CSI Effect, “ which is most often refers to the belief that jurors have come to demand more forensic evidence in criminal trials, thereby raising the effective standard of proof for prosecutors. While this belief is widely held among American legal professionals, some studies have suggested that crime shows are unlikely to cause such an effect, although frequent CSI viewers may place a lower value on circumstantial evidence” ( Kim, Young S; Barak, Gregg; Shelton, Donald E 2009).…
Dr. Edmond Locard’s Exchange Principle states, “Any action of an individual, and obviously the violent action constituting a crime, cannot occur without leaving a trace.” It is hard to say Locard’s Exchange Principle was not disregarded. After three months of expert investigation it was found that the DNA evidence that was discovered at the scene did not belong to Jennifer or Noura. Also Noura’s own DNA was not found at all at the scene of the crime. It is very hard to understand how Noura could have made extreme violent contact with her mother and not left any fingerprints, footprints, hair, skin cells, blood, bodily fluids, pieces of clothing or fibers behind. This lack of traces evidence sets off two different paths in my mind. One way leads you down a road of pure hatred for a parent. Everyone was felt this way one time or another in their life, where a disagreement or argument over something that is usually aimed at protecting the youth, leads to a massive outburst or feeling of rage, that is always immediately followed by guilt or remorse by a normal human being. But what happens when this rage affects a “not so normal” child. One with malice aforethought, that is just so tired of being controlled that they premeditate a murder and thoroughly clean any trace of evidence. The other path is the road Noura’s defense took. She is irrefutably innocent and Jennifer’s killer/killers are still on the loose.…
As crime scenes investigators, there are many different types of death that are investigated day in and day out. Some deaths are classified as natural, undetermined, accidental, suicidal or murder. Depending on the scene and classification, investigators will know how to handle each case. Also depending on the jurisdiction, the cases are investigated by medical examiners, medical examiner investigators or even special units dedicated for specific cases. This paper will explain the different types of deaths, how they are investigated and how they are caused.…
Now in order for them to do this they have to first do a walkthrough of the scene to determine what strategy they will need to use in order to apprehend evidence from the scene (work.chro.com. n.d.). They also need to figure out what equipment and resources will be needed to collect the evidence during their walkthrough of the crime scene. Furthermore, they document the crime scene and all of the evidence that has been collected at the crime scene in order to later be able to testify in court that the evidence in question is from that scene and has been properly documented and collected.…