Locations of crime scenes materialize anywhere after a crime occurs examples include the back bedroom of a residence or an exposed clandestine grave located off the side of the road. No doubt, managing a scene can be a painstaking obligation requiring authorities to maintain a keen eye for details. Historically, crime scene processed with the use of 35mm cameras, tape methods, measuring wheels, sketch pads and video cameras to document post event scenes. (Fletche, 2007)
All things considered, technology exists for improved scene documentation with precision survey grade accuracy. Leading establishments such as Faro and Leica are paving the way in fast and precise 3D scanning for today’s law enforcement. How a scanner works depends on the how the scan station manufactured. By the same token, a precisely focused laser emits a pulse of light at an object, and calculates the time it takes to return to the station. Since science tells us the speed of light is a constant 186,000 meters per second a mathematical equation gives an accurate measurement. (Rataj, 2017)
Moreover, from an investigative perspective 3D laser scanning techniques and Photogrammetry provides a frozen state of data at a crime
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In the case where a decaying corpse found in a living room in his apartment for around two weeks. The medical examiner’s discovered patterned injuries on three patterned bone wounds on the individuals’ skullcap consistent with blunt force trauma. The detectives assigned found bloodstains on the carpet, ceiling, furniture, and in the kitchen. After a 3D scanner used to document the scene, then feed into a software program. Paradoxically, the data along with the medical examiner report the recognized injuries are as a result of being struck by the butt end of a gun. (Buck, et al.,
In “ Catching Crime Cars”, Alice Savage writes about the CSIs use high-tech to search clues in order to find the crime cars. In this writing, author gives two examples. One example is about a hit-and-run case. Police caught the suspect by one piece of paint that they found in the victim’s clothing. They used this piece of paint to match the model of hundreds of cars and finally found the crime car.
Innocence Project Report on the Case of Curtis Jasper Moore Tommy Warrick Drake University According to the Innocence Project one of the greatest causes of wrongful conviction is due to eyewitness misidentification. They state that 72% of cases where defendants have been exonerated eyewitness misidentification played a role. Even though eyewitness testimony has been proven inaccurate numerous times, it can still be the decisive evidence in a court of law. This is because the law views the human memory as a camcorder which can record and repeat whatever it sees.
In this paper I will be comparing contrasting two various aspects of forensic sciences used, and talking about the different tactics used to identify suspects; as well as the contrasts between the two methods. The man I will be talking about is John Wayne Gacy. The two methods I will be going over are, Finger print DNA and Forensic toxicology. These two are very similar, but made substantial differences in the evidence in his case. John Wayne Gacy was a murderer from Chicago, Illinois.
So how did crime get solved without the modern use of technology? According to Fisher (2000), investigations were much more difficult and time consuming, and technology that was available at time did little to help. For example, investigators used Polaroid pictures to get crime scene shots. A few years later, as technology advanced, investigators started collecting evidence with camcorders, which were much lighter and recorded in color, but still very large.
The CSI effect describes the way CSI is exaggerated on crime television shows such as CSI: Crime Scene Investigation and Sherlock which influences public perception. As a result, Jurors have come to have unrealistic expectations about the quantity, quality, and availability of scientific evidence, thereby raising the effective standard of proof for prosecutors. As technology improves and becomes more prevalent throughout society, people may also develop higher expectations for the capabilities of forensic technology. The csi effect creates unrealistic expectations of the public and has raised the juror’s expectations of the crime investigating field.
Can a picture really say a thousand words? In this case the answer is definitely no. These mugshots are just the beginning of these twisted stories. When a person is arrested it is common practice as part of the booking process for the police to take a photograph of the individual. These photos are used as a form of identification for the prisoner and can also be shown to victims or witnesses of the crime.
And hitting and beating on a crime scene can be specified by looking at a larger injury which are more likely occurred by a larger object such as a hammer or a bat which create a larger surface area where the blood gets collected and also produces drops of different sizes
The nonfiction book, Jumped, Fell, or Pushed: How Forensics Solved 50 “Perfect” Murders, is an informative and well written book by the author, Stephen A. Koehler. Okay, you get two options, take Mr. Laney’s forensic science class at Lincoln High School or read this book. If you don’t know anything about Forensics, this book gives a sufficient overview of the subject and its counterparts. There is no main plot or developing characters within the book. The type of evidence varies from chapter-to-chapter, as well as the forensic technique implemented to analyze that evidence.
Among them were things like distinguishing slash wounds in five murders across the victim's necks, similar handcuff marks on various victims' wrists and blunt force head trauma to half of the victims (Chen, 1989.) Shoe prints were also left at the scene of two murders, the shoe prints had to be either a visible print, plastic print or latent print. Examiners use several methods in the collection of shoe prints depending on the type of impression that is left at the scene of the crime. For collections in soil, which was where the print was found in the Ramirez case, casting is the most commonly used collection method for analyzation. The evaluation and comparison of impression evidence is usually performed by a trained footwear and tire mark examiner (NFSTC, 2013).
Doing this, helpws protect the evidence and prevent cross contamination. The crime scene is the physical area where a crime is thought to of occurred and where the evidence of the said crime is thought to reside. Vital evidence to a case, can be found at a crime scene. This includes, fingerprints, DNA, foot prints, bullets, bullet casings, fibers, etc. It is important to determine if a crime has in fact been committed, if so, the officer must initiate enforcement action, by arresting or pursuing the offender or dispatching apprehension information.
Student Name: Keshab Rawal Student ID: 77171807 Word Count: Title: The rise of anti-forensics: The rise of anti-forensics: Tables of contents: • Overview • Introduction • History • Categories/Tools of anti-forensics • Conclusion • Future Work Overview: Computer forensics is an active topic of research, with areas of study including wireless forensics, network security and cyber investigations. The goal of the computer forensics is to provide information about how the crime happened, why and who is involved in the crime in any legal proceeding by using the computer forensic tools.
Crime Scene Reconstruction (CSR) Case Studies Proving Murder Case 1 A man shot his father using a pistol. The bullet grazed the left forearm and the entry wound was on the left side of the abdomen; there was no exit wound as the bullet was obstructed by the right pelvic bone. The man claimed that the shot was accidental and due to falling when his father pushed him. A three-dimensional (3D) reconstruction was necessary to identify whether the case was intentional or not. CSR of Case 1
Crime has been at its highest this year. Forensic science has played a major part in investigating crimes and searching for evidence that is not seen by the naked eye(Dillon). The field of forensics is continually growing, causes of death have become more interesting, autopsies are more critical, and the salary is appreciable(Gewin). Since there are only 18 forensic science undergraduate programs in the US that have been authorized by the American Academy of Forensic Science, my prospective college choices are limited. After tackling the time it will take to earn my bachelors in forensics(4 years), then finish medical school and four years of residency, it will eventually all be worth the wait.
The physical evidences are gathered at any crime scene, for example, hair, fibre, blood, fingerprints, footwear, bare-footprints, tire impressions and any fracture
Crime scene photography, sometimes referred to as forensic photography or forensic imaging, is the art of producing an accurate representation of an accident or crime scene. Crime scene photography is an important asset in the collection of evidence at the crime scene, documents the appearance and location of victims, shell casings, footprints, bloodstain patterns, and other physical evidence. In order for photographs to be admissible in a court of law, the standard for photographs of crime scenes and evidence must be of sufficient quality. Photography has a vital role in the decision made in court because the pictures are to represent the scene as it was exactly. Digital SLR single reflex camera is the most often used camera in crime scene investigations.