1. The duct tape found at the murder crime scene will be represented by the duct tape piece labeled “A”. In addition to duct tape piece “A”, duct tape pieces “B”, “C”, and “D” represent the rolls of duct tape belonging to the suspect. The investigator will obtain all four pieces. 2. The investigator will examine duct tape piece “A” against duct tape pieces “B”, “C”, and “D” to determine similarities and differences between them utilizing increasingly strong microscopy methods—beginning with the unaided eye, then utilizing a magnifying glass, and ultimately a stereomicroscope. While using each of the above methods, the investigator will carefully note observations made with each in his or her lab notebook. These observations will come in the
Describe three ways that a crime scene can be recorded. What is a benefit of each?
This phantom sticker that supposedly left residue in the shape of a heart on the duct tape found at the crime scene, was brought up in the trial by the prostitution even though a sticker was never found. According to an article (Goddard, 2011), Elizabeth Fontaine, a forensic examiner in the FBI’s Latent Print Unit, testified in court that they were unable to find any fingerprints on the duct tape, but during the examination, an outline of a heart appeared on one of the corners and edge, that was approximately the size of a dime. Fontaine compared the heart shaped outline to the outline of debris that gathers around the edges of a used Band-Aid. The Phantom sticker showed up during the examination of the duct tape under a special lighting tool
Investigation: The detective upon receiving information on the events, beings his initial investigation of the crime. The detective, along with his team, collects evidence such as: video surveillance, finger prints, bullet analysis, blood pattern analysis, DNA, and interviews the witnesses. At some point in the investigation, an interview was conducted on a customer that got a full description of the suspect. The detective, upon hearing his statement, requests for a sketch artist. The sketch artist pencils up a picture of the suspect and copies are made and handed out to all patrols. The individual describes the suspect as a tall white male, with short brown hair, about 6’4, wearing glasses with a five o’ clock shadow, and about 210lbs. The suspect was described as wearing a white hoodie and blue
The case I chose to write on is based on a DVD that we watched in class called ‘Beaten by a hair’. In this case, a woman was reported missing after she went to work and never returned home. After the police discovered a bloody pillow case in the woods, near her house, they linked it to the missing pillow case in the woman’s room, and then realized that they had a murder case on their hands. A mystery in the case was that one of the local neighbors had mentioned seeing the woman leave through the front door of her house but the evidence says different, so investigators had to find out who left the house that morning. I am interested in this case because it was very intriguing how the forensic officers put all the pieces
6. The evidence square illustrates the four categories, in four different squares inside a bigger square, of evidences as techniques in investigation. The first upper left corner square is the testimonial evidence which is the technique for gathering information or testimonies from witnesses to prove something. The second square located in the upper right is the documentary evidence which is the information collected from papers, computers, pictures and other written or printed sources, this includes the examination of data, audits, computer searches and etcetera that can be very useful to prove something like fraud. The third square, located in the bottom left is the physical evidence, this involves fingerprints, or stolen objects, or other tangible objects that can be used for forensic analysis. Lastly, the fourth square found on the bottom right is the personal observation which
The purpose of the experiment was to find the culprit who murdered Mr. Mowder by finding the hair sample that matched the crime scene hair. The hypothesis of the experiment was if everyone’s hair had different color, width, shading, and presence of medulla then the match between the suspect’s hair and crime scene hair is the murderer because no two hairs have the same set of characteristics. The hypothesis was accepted because the crime scene hair sample matched with one of the suspect samples. The crime scene hair sample matched with sample A or Schwab. The crime scene hair’s set of characteristics were the same as sample A such as width and color. The microscope showed the differences and similarities in the hair sample. From the chart it shows that the crime scene hair had shadings on both side of the hair, was light brown, wide,
Rayon that matched the Carpet in William’s 1970 Chevrolet was found on the bodies of four victims. Only 680 cars in the Atlanta area had similar carpet. And the odds against a murdered child picking up the fibre by chance was 3,828:1. Combining the two probabilities made the case even more compelling: the odds against finding both fibres at random were 29 million:1.’ This information was taken from Crime Scene: The Ultimate Guide to Forensic Science and although the author, Richard Platt has no expertise in forensic science, the information he provides can be found elsewhere which increases its
The purpose of this project is to provide the reader of this paper with a descriptive analysis of an episode of Crime Scene Investigations (C.S.I.). The intent is to show what is provided by the television series of what happens in a crime and what is supposed to happen during a crime scene investigation. The reader should be able to understand during this analysis to what in fact is non-realistic in this television episode and what is reality as determined by what has been researched. This will show what really happens in a crime scene investigations lab.
Crime scenes are known to have many clues left behind. The obvious would be a the body or bodies, clothing, and sometimes even the murder weapon. While these are great way to solve a case there's another kind of evidence; trace evidence. Trace evidence are small pieces of evidence that are laying around a crime scene. There are many types of trace evidence some of them include metal filings, plastic fragments, gunshot residue, glass fragments, feathers, food stains, building materials, lubricants, fingernail scrapings, pollens and spores, cosmetics, chemicals, paper fibers and sawdust, human and animal hairs, plant and vegetable fibers, blood and other body fluids, asphalt or tar, vegetable fats and oils, dusts and other airborne
Our class of twelve was subdivided into six groups of two. Each group used a light microscope to observe thirteen slides of organic materials (listed with the appended images). The slides were dyed one or two colors to show different parts of the organisms or cells. With each slide we started our observations on 40x magnification and moved up, through 100x, to 400x magnification. After recording what I saw under the microscopes, I researched what I had seen, and collected images for comparison, which appear in the appendix.
Since CSI, television has seen a plethora of forensic shows to include dramas and reality crime shows. This paper will address an episode of one such show called Crime Scene 360. Keywords: crime, detective, evidence,
All four pieces of duct tape were the same color when investigated with both the naked eye and stereomicroscope. This similarity, however, does not say much about whether or not the suspect committed the crime. Many varieties of duct tape are gray/silver and all four pieces were the exact same color. The color observations are insignificant because the duct tape found at the scene came from only one roll of duct tape. Since all four pieces were the same color, the crime scene
In the documentation stage of an organized approach for processing the crime scene all functions have to correspond and be consistent in depicting the crime scene. The final results of a properly documented crime scene are the ability of others to take the finished work and reconstruction the events that occurred at the scene and make a court room presentation. In the Scene Documentation stage there are three simple steps to properly document the crime scene written notes and reports, photographs, sketching.
At a crime scene, you must first, identify and secure the scene and also check the life of any victims found at the scene. Second, preserve the evidence by taping the perimeter of the scene and using guards to restrict the scene to authorized personnel only and also they must establish the entrance and exit paths, effects of the weather, and isolate witnesses and possible suspects. Third, the first one to the crime scene must observe the scene by walking through. Fourth, the scene must be released to higher personnel to investigate the crime. Fifth, they must record the scene by taking pictures, sketching, or taking very detailed notes. Sixth, the evidence found must be marked and must have a picture taken of it.
We looked at onions, lettuce, cotton, yogurt, and pond water. We viewed a thin piece of the onion with a 100x magnification. We saw the cell wall of the cell. We saw a rectangular-like shape repeated. Basically, we saw a shape that was almost like a rectangle in a pattern. The rectangles were in a brick like pattern and they repeated itself on the whole onion. We figured out that this was the cell wall on the outside of a cell. We viewed a small part of a cotton ball underneath the microscope with a 40x magnification. The top half of the cotton ball was tangled a little bit, but some strings just crossed over each other. The second half of the cotton ball was tangled a lot. It looked just like a bird’s nest. There was no pattern