Midterm Assignment
Jazzmion Owens
Forensic Fingerprint Analysis CJ328
Professor Tracy Guaderrama
Kaplan University
April 28, 2014
Part 1
When it comes to identical twins we have come to learn that twin identical or not will not have the same fingerprint. Fingerprints are unique and are made to identify a person. So even when you clone humans or other primates I believe that the Friction ridge pattern will be similar but not exactly the same. I believe that in the process of the cloning process something will cause the fingerprints to come out different. Because cloning is dangerous there has yet to be a human cloning, but there have been cloning of monkeys and according to the data even though the monkey was cloned the fingerprint still isn’t the same.
Part 2
Next we will discuss the processes used when dealing with latent prints. First I will discuss the analysis of a latent print. So first when a latent print is sent to the lab who conducts the analysis? The forensic analysis is he person that conducts the analysis, or a fingerprint technician or even a police officer. Bu...
Bloodstain pattern analysis (BPA) is one of many specialties in the field of forensic science; the science of bloodstain pattern analysis use scientific knowledge from other fields to solve problems. BPA also uses the scientific method to examine bloodstain evidence at a crime scene where blood is present by gathering information, observing, documenting, analyzing, evaluating, and technical or peer reviewing. A bloodstain pattern analysis job is to collect, categorize and interpret the shape and distribution of bloodstains within a crime scene (Peschel, 2011). Bloodstain patterns can reconstruct a crime scene and then determine the crime as an accident, homicide, or suicide; the blood can also identify the location, quality and intensity of an external force. The purpose of a BPA’s is to determine bloodstain patterns and to recreate the action that caused the blood.
CBS’s CSI: Crime Scene Investigation exploded into popularity when it aired in 2000, opening doors for the creation of other similar criminal investigative television shows involving forensic evidence such as Cold Case, Criminal Minds, and Bones. Many of these CSI-type shows present a murder or crime solved within an hour-long episode using forensic evidence conceived by glamorized CSI personnel and sometimes fabricated methodologies and technologies that only exist on television. Despite just being shows, one wonders whether these popular shows have skewered public perceptions about forensic evidence in real court cases and have impacted the outcome of court verdicts. The CSI Effect, explained by Kim, et all, was named after the television show
The crime scene was then examined and a list of possible pieces of evidence were recorded down. Including a sketch of the crime scene, Anna Garcia’s house, with the locations of all of the pieces of evidence. All of these items listed help develop a theory about Anna’s death. This theory then helped establish a list of possible suspects. The person of interest list included a number of four individuals and each one had a relation with Anna. The list included (1) Alex Garcia- Anna’s ex-husband. They had an unpleasant divorce the year before and in a result Alex quickly remarried a much younger woman, while Anna remained single. Alex and his newlywed wife are expecting to have a baby soon. Although, Alex may be suffering from a few financial
The origins of DNA were first discovered during 1857 by Gregor Mendel the "Father of Genetics”, whom was performing an experiment of genetics with pea plants, and would provide a basic foundation towards DNA and Genetics. Friedrich Miescher and Richard Altmann in 1869 were also part of the first people to discover DNA. While testing some sperm of a salmon, they discover a strange substance that they would name as "nuclein", which is known as DNA. This new form of "nuclein" (DNA) would be found to only exist in chromosomes. Frederick Griffith, a researcher, found the basis on DNA, from a molecule inheritance experiment involving mice and two types of pneumonia. His findings were that, when virulent disease is heated up (to kill) and is injected into a mouse, the mouse survives. Unlike the second mouse that has been injected with non-virulent disease and virulent disease (that had been heated and killed) is killed. This would be caused by an inheritance of molecule (transformation) of virulent bacteria passing on a characteristic to the non-virulent. DNA findings would continue to be tested and tried to better understand how DNA works.
the orientation field by adopting an orientation field model described in [5]. According to the orientation field and a predefined ridge frequency, the ridges of the fingerprint are iteratively grown from an initial image which records the minutiae local pattern.
Fingerprinting information varies in numerous ways. Each person’s fingerprints are different in someway (Unique). The technical term is actually “DNA fingerprinting” because us as a person obviously cant just take a look at a fingerprint and see the difference; we must analyze the actual DNA behind it. Sometimes a miss concept of most people is, that fingerprints stay perfectly fresh for extended periods of time. Partial fingerprints and even degraded full fingerprints can turn up to be useless sometimes. Fingerprints are not admissible if they are 99.9% sure, they must be 100% or a Forensics lab will not support them. DNA Fingerprinting, and the fingerprints that are at the tips of your actual fingers are two different things. The ones we a...
The process of latent print is a hundred years old technique that fingerprints analyst uses to view human fingerprints that different from one another by separating them. Fingerprints analysis was first found in the mid-1800s and used to find suspects and resolve crimes for more than 100 years
There is a lot of controversy whether latent prints uncovered on firearm evidence can be deemed reliable. In order to fully understand this controversy, studies must be conducted so that there is supporting evidence. Two examples of studies that were conducted are the Study on Developing Latent Fingerprints on Firearm Evidence by Betzaida Maldonado, and Fingerprint & Cartridge Cases: How Often are Fingerprints Found on Handled Cartridge Cases and Can These Fingerprints Be Successfully Typed for DNA?, by Terry Spear, Jeanne Clark, Mike Giusto, Neda Khoshebari, Michael Murphy, and John Rush.
A fingerprint is the pattern of ridges and related characteristics found on the finger pads, the fleshy parts of the fingers used for gripping and touching. A person's fingerprints are formed when they are a tiny developing baby in their mother's womb during weeks 10-24. Pressure on the fingers from the baby touching is called "friction ridges", the faint lines you see on your fingers and toes.
Tool mark analysis- This is where the forensic investigators will photograph or sketch (when the whole area can’t go to the lab) impressions made by tools used in the crime. At the lab, they will compare tools and marked objects to identify specific tools. 3 types of tool mark impressions are: compressions; pressed into soft materials, sliding; tool scrapes across surfaces, and cutting; a combination of both compression and sliding.
Preview of main points: Now I am going to take you through the process of identifying, collecting and analyzing fingerprints.
Studying everyday and finally finishing your post-secondary education, majoring in Criminal Justice or another major in that field, you can finally land your career. As a Forensic Scientist, you’re most likely going to work for the Federal Law Enforcement, to examine & collect evidence from crime scenes such as hair, nails, fingerprints, and/or fibers. The goal in this field is to convict an alleged perpetrator of an underlying crime. As a result of this goal, it is essential for those involved in the investigation process to preserve the evidence collected.
The latent finger prints at the mock crime scene where located in two separate places. One of the finger prints was located on the mirror while the other fingerprints where located on the top of the empty bottle of vodka glass. I used a black magnetic powder, magnetic wand and lifting tape to collect the fingerprints. I carefully and gently brushed the black magnetic powder across the finger print using the magnetic wand. I used the lifting tape to carefully lift the print making sure no air bubbles got inside of the tape when placing it on the finger print. After lifting the tape, I placed the tape onto a finger print card and placed it inside of a manila folder. I repeated the same steps for the prints on the vodka glass bottle also. After placing each print inside of a manila folder, I sealed all of them with evidence tape. After sealing each print I wrote on each manila folder a detailed description on the folders. And I also wrote my initials on each folder. Also I filled out a chain of custody and everybody that touched the items initialed it also and then it was placed in a bin and sent to the
Crime investigators have the job to solve crime and find the suspect responsible. Sometimes the offense is very difficult to solve, but with the right pieces of evidence and tools, the investigation can be answered a little more easily. The use of fingerprints is a main tool used at crime scenes. Investigators find these at the actual crime scene and analyze them at the lab to determine whom the prints belong to. Each person has an individual print which is why this is a very useful piece of evidence. Sir Francis Galton found that the prints could be categorized into different types as well as different groups. The research of fingerprints from decades before has shaped the way detectives identify suspects and victims.
The amazing world of forensic science can help one to understand how important the methods of fingerprinting and blood testing is. For the past decade, a powerful criminal justice tool and topic referred as forensic DNA and fingerprinting has cleared suspects, exonerated individuals wrongfully accused or convicted criminals of a crime (Saferstein, 2015). DNA has been admitted into court for judges and juries to consider the scientific evidence when hearing a case. In the case of Cupp v. Murphy, the warrantless search of the scraping of blood from the fingernail of an accused murderer was upheld by the Supreme Court. It involved no medical risk nor the risk of destruction of the evidence or the suspect. It allowed forensic science to prove