Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Processing of crime scene evidence
Processing of crime scene evidence
Crime scene investigation process
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: Processing of crime scene evidence
After thorough investigations of the evidence, it seems like Maroon Flash is the person who hit Reveille while riding his bike. We used DNA evidence, fingerprint evidence, blood evidence, and hair evidence. For fingerprint evidence, we looked at fingerprints left on the notebook the cadet managed to grab from the suspect. On the cover, we found the cadet’s fingerprints, Bikerman’s fingerprints, and multiple of Maroon Flash’s fingerprints. On the pages of the notebook, we only found Maroon Flash’s fingerprints. This seems to clarify that the notebook was his, and that it was grabbed from his backpack when he hit Reveille and rode off. For blood evidence, we used the Kastle Myer Blood test; we tested for the presence of blood on Reveille’s fur, Bikerman’s shirt, and Maroon Flash’s shirt. …show more content…
Blood was found on Bikerman’s shirt, but according to his statement, which a student on the team confirms; Bikerman cut his hand playing intermural football and wiped his hand on his shirt. Another type of evidence examined was hair. Hair samples were collected from Reveille, Reveille’s handler, Bikerman, and Maroon Flash. Evidence was also collected from Reveille’s collar, Bikerman’s shirt and bike, and Maroon Flash’s shirt and bike. Reveille’s hair was found on her collar, Bikerman’s bike, and Maroon Flash’s bike and shirt. Reveille’s handler has hair that found on her collar and Maroon Flash’s shirt. Bikerman’s hair was found on his bike and shirt. Maroon Flash’s hair was found on Reveille’s collar, his bike, and his shirt. Since his hair was found on her collar and Bikerman’s hair was not, it seems to further point to the conclusion that Maroon Flash is our criminal who hit Reveille. The last type of evidence examined was the DNA evidence from Reveille, Bikerman, Maroon Flash, spots from Reveille’s fur, Bikerman’s shirt, and Maroon Flash’s
We were presented with many facts that all pointed to Mr. Washburn as the murder. In the house all of the entrances were thoroughly inspected by authorities, and they found no sign of ransacking. “[They] examined all the locking mechanisms, all the doors and windows. In [their] opinion there was no evidence of any forced entry” (P.81). When police looked for fingerprints, “They were all of the Washburn family and the maid” (P.81). There was no trace of an outside party; somebody usually in the Washburn house committed the murder. While in the living room, an officer found a drop of blood. The evidence technician was called the next night to run some tests. “He sprayed the living room carpet with luminol. It is a luminous spray, and when it comes in contact with blood it illuminates” (P.82). To both men’s surprise the whole living room was illuminating. After spraying further the men found a trail from the living room through the kitchen to the garage. In the closet the men found a wet mop, which was tested for blood and also came back positive. Somebody tried to clean his or her bloody mess, and try to save himself. The physical evidence proves the killer was somebody who was familiar to the Washburn household.
On June 19th of 1990, Robert Baltovich’s girlfriend Elizabeth Bain went missing. Elizabeth told her family that she was going to check the tennis schedules at her school, the University of Toronto Scarborough Campus. She never returned, but her car was eventually recovered. It was found with blood on the backseat, with forensic tests showing that it was Elizabeth’s. With no clear evidence, the “solving” of the case was completely based on eyewitness testimonies, which eventually had Robert arrested for the murder of his girlfriend.
The suspect of the two rapes was known to smoke cigarettes, wear white gloves, ride a bike, use a knife, wear shoes that had rubber soles, and have a flashlight. When Ronald Cotton went into the police station to start things out, they took the knife that he always carried out from his front right pocket. Once Detective Gauldin started to question him, Ron told Gauldin that he smoked Newports, which is a type of cigarette. After he was questioned multiple times, they showed him a pair of black canvas World Cup shoes. He said that his shoes insoles were falling apart, but they weren’t that beaten up when the police showed them to him. They then showed him a piece of material that came from his shoe, which was left in Jennifer Thompson’s apartment. After that, they then showed him a red flashlight and accused him of taking batteries from Mary’s house, the other rape
A body was found with no identification was found on the body. An external examination of the body found numerous needle marks and bruising and thrombosed veins in the cubital fossae. The head showed evidence of a blunt trauma and small paint and metal fragments were removed from the wound. Analysis of the contents in the stomach found a few partially digested potato chips and some partially digested pills. A small amount of residue was extracted from the tin for analysis. Footprints were evident on the carpet where soil had been tracked in. Soil samples were collected from theses footprints. This analysis will show how Infra-red spectroscopy and Chromatography would be useful in finding both the cause of murder and possibly who the culprit was.
Scott: All of these things link Terrance to the murder: hair fibers, blood samples, nail clippings, a piece of his shirt
Because police detectives did not actually see the body dropped into the river, they could not directly accuse Williams of the crime. This made proving the deaths on him would be a lot more challenging and would heavily depend on forensic evidence. One of the key victim’s in the conviction of Wayne Williams was 11-year-old Patrick Baltazar. When Williams was asked if he knew him, he said that he had never met Patrick. Some of the techniques they used were fiber analysis, DNA sequencing, and hair analysis.
the person who stole his bike and Officer Martin decided to push the frustrated youngster
The officers tampered with evidence and made a false discovery that he was the person and that is how he was convicted (Innocent Project N.D.). Many forensic methods have been implemented in research when looking for evidence, but the methods that are not scientific and have little or nothing to do with science. The result of false evidence by other means leads to false testimony by a forensic analyst. Another issue with forensic errors is that it is a challenge to find a defense expert (Giannelli, 2011).
On Wednesday, November 16, 2011, Katherine Stang, Aresh Kabirnavaei, and Andrew Roller, all students in the Master’s of Forensic Science program gave thesis presentations to the Forensic Seminar Class. The following paragraphs will summarize each topic.
When the first responder got to the scene he adimatately meet the 911 caller, who lead him to a car in an apartment parking lot. The car doors were closed and all of the windows were fogged. The police officer used his flashlight to see inside of the car before opening the door. He found a young African American woman who had been shot several times. The officers quickly called for backup, investigators and medical personnel. While awaiting for their arrival he secured the crime scene with caution tape, creating an initial perimeter setup as discussed in lecture two. Once everyone arrived he left it to them to search the car while he talked to the 911 caller, witnesses and others who had information on who had been present in the car. The investigators were able to collect physical evidence of bullets and cartage casings that were found outside the vehicle and inside the vehicle on the floorboard of the driver’s side. The team determined the bullets came from a 40 caliber. Other types of physical evidence that were found on the scene were the bloody clothing on the victim, the victim’s cell phone and fibers in the car from the driver’s side. personnel at the scene crime took several photographs, powered test for finger prints and did a blood spatter analysis. Stewart’s autopsy revealed that she had been shot at close range in the left hand once and in the
On that night in Brentwood, the two murders were committed by a heartless individual who had no remorse for his victims. The scene outside Nicole's apartment was gruesome to say the least. Goldman and Brown Simpson’s blood covered the once cement-colored sidewalk. The investigators found multiple pieces of evidence at the crime scene. Most of the evidence leads directly to O.J. as the perpetrator of the two murders. Detectives collected and examined hair, blood, and small fibers (Linder). Other incriminating evidence at the site included a bloody glove and multiple shoe impressions that match the ones found in O.J. Simpson’s white Ford Bronco
This case started on July 25, 1984, with the death of a nine year old girl by the name of Dawn Hamilton. The story plays out as follows: Dawn approached two boys and an adult male that were fishing at a pond in a wooded area near Golden Ring Mall in eastern Baltimore, Maryland. Dawn asked the boys to help her find her cousin, they declined the adult male however agreed to help her look. This was the last time anyone saw Hamilton alive. Hamilton’s body was found to have been raped, strangled and beaten with a rock. The police collected a boot print at the scene and DNA that was found in Hamilton’s underwear. The police also relied on the witness testimonies and line-ups, which in this case was the photo array. With the five eye witness testimonies and a tip the believed to be suspect was found. Kirk Noble Bloodsworth a prior U.S. Marine with no prior criminal record was taken into custody and charged with intentional first degree murder, sexual assault and rape. Bloodsworth was basically convicted on the eye witness testimonies. The state requested the death penalty. Bloodsworth was sentenced to two consecutive life terms. (BLOODSWORTH v. STATE, 1988)
“Have you ever considered that you could get so much enjoyment by creating your own meaningful patterns to later colour in?”
Andrus, R., Bailey, J., Sprague, T., Springer, F., Tulleners, F., Wiersema, S., et al. (n.d.). Crime Scene
In crime scene investigations, hair is one of the most common types of evidence encountered. Hair evidence is picked up at the scene, and usually collected from several different areas on the body. Through hair analysis, we can determine if the source is human or animal, and what race the source is a member of. When analyzing hair, the color and structure is the main view of focus and is determined through microscopic magnification. Today hair evidence has played a significant role in criminal investigations and has helped solved many cases.