Hair Analysis Essay

The case of Joann Curley was eventually solved with the use of examination of hair, which evidently reveals that hair and its growth is an extremely useful forensic tool which can help investigators solve a crime. However, by the time investigators were able to arrest Joann Curley, she was able to collect the life insurance money and use it as she pleased for six years. The fact that Joann was able to carry out this murder and not get caught for six years makes this case interesting, as she was suspected and questioned numerous times, and was also examined for thallium, and traces were found in her and their daughter, but investigators were still unable to link her to the crime for six years due various testing for thallium

How the hair of fiber made a connection for the case: Leanne Tiernan was found dead by a man that was walking his dog. She had a black plastic bag over her head, held in place with a dog collar, with a scarf and cable tie around her neck, and cable ties holding her wrists together.The scarf tied around Leanne Tiernan’s neck had a few hairs caught in the knot. Forensic scientists found a strand of pink carpet fibre on her clothes, with specific patterns of dye. Police found strands around a nail that matched the fibre on her jumper leading to the police arresting John Taylor.

In this paper, I will discuss the background of forensic pathology, the pros and cons of forensic pathology, and the similar and different in a forensic pathologist and a coroner. There are various disciplines in Forensic Science that can help with a crime, and solving that crime. One of these various disciplines is Forensic Pathology which the study of disease, and its causes, moreover; it involves the discovering the cause of the death where a death is sudden or suspicion to law enforcement. While a Forensic Pathologist can be helpful to law enforcement, and helpful in assisting in crime investigation, there are cons to being forensic pathologist. Furthermore, forensic pathologist can be confused with coroner even though they do the same

The purpose of this experiment is to investigate whether Roger T. Peterson was murdered by an employee, or whether it was a tragic accident. Based on the victim and suspect seeds collected it will help solve the case of how Roger T. Peterson died. It is hypothesized that the suspect Bobby Walden was a part in Mr. Peterson's death. Fifty suspect seeds and fifty victim seeds were collected and analyzed. Since the calculated t-value

If flaws in testing techniques become noticeable and extreme action is not taken to control these issues, society will begin to test the validity of “forensics” as a whole. Referring back to the Motherisk case where a lack of education and professionalism took place, people began to question the science of hair testing and the reliability of investigators, and because of this many cases involving this particular laboratory had to be reevaluated (1). Employees in the Motherisk case were not informed that they were considered expert witnesses in the cases they took part in, and part of their job was to also maintain a bias free work zone, these are crucial mistakes which can lead the way for many wrongful convictions (1). The Motherisk case also demonstrated the importance of judges playing an important role in raising issues of reliability of evidence where people in question simply cannot afford it (1). Prior to final decisions judges should have all the evidence regarding the specimen of hair and the pros and cons of assessing this as a valid science (1). Only the best sciences should ever be considered in the courts. In the courts “hard science” should always be picked rather than a “soft science” because it is scientific proof (1). Hair follicle testing may one day become one of the easiest methods of testing, and will allow

CSIs or crime scene investigators are also known as forensics science technicians. CSIs search for useful evidence in crime scenes analyze them. Evidence that are usually found are hairs, fingerprints, or blood that can be used to track down the culprit. Fingerprints are useful because we can find patterns in the prints at the scene and the print of the suspects to find matches to narrow down the search. Hairs can also determine who was present at the crime scene. Hairs can give CSIs the true color of someone’s hair and this can determine the culprit because everyone has different hair types. The medulla, or the inside of hair, gives us the true color of the person’s hair. The cuticle and cortex determine if the hair is damaged from dye or if it’s healthy. The blood can also narrow the search for the culprit. Determining the blood type present at the crime scene is important because you may find a match in your suspects. You can determine blood type by using antigens and testing the reactions to other bloods seeing if they will clump or not.

To make sure that these people were only witnesses and may not have had been involved in the homicide their fingerprints will be taken and compared with those that have been acquired at the homicide seen and if that none of them matches any of the prints acquired at the scene, then they were merely witnesses. In case, any of the prints acquired during latent impression procession matches any of the persons who were present at the scene then there is a reason to believe that they were not witnesses, and they must have taken part in the homicide unless there is strong evidence to the

A weakness of this analysis is that it is possible that some fibers found were already in the crime scene before the crime was committed. The data from Figure 6 is somewhat convincing because it shows you the possible suspects that could have been at the crime scene. At the same time you always need more information before you can make an accurate conclusion. Moreover, the samples from Figure 7 that may have come from an animal (possibly human) are C-1a, C-3a, and Epithelia. The strength of this analysis is that it gives you a clear idea of which samples come from animals, and it gives you an idea of what samples to expect at the crime scene. A weakness of this sample is that you might accidentally confuse an animal cell from a human cell. This data is convincing because it helps you easily eliminate the suspects that could not have been at the crime scene. Finally, the suspect that matches the crime scene is Bill Apple from the RELP analysis. This specific data from Bill Apple is convincing because a person’s DNA is unique, meaning that nobody else in the world has that same DNA as

Physical evidence surrounds the known end tale to a story. Since the beginning, crime scene investigators have seek the infallible nature of human identification. It can achieve its optimum value to help investigators reconstruct the crime scene to piece together the sequence of events. The contents of physical evidence, best known as real evidence, consist of those tangible particles such as hairs, fibers, fingerprints and biological material (blood, semen or saliva). It is stated in context of the “Locard’s Exchange Principle”, whenever a person enters into a room, they will always leave a trace of evidence. Physical evidence is subjective to being the only way to reliably place or link someone(s) to the crime scene.

In this article the author is trying to argue for better standards on forensic sciences (particularly hair identification) being used in court cases. This article starts with the FBI statement claiming that hair identification is indefensible and goes onto explain cases which the evidence presented was misrepresented. The cases referred to in the article show mistakes in court, such as the testimony that claimed the hair was undoubtedly the suspects. The hair then turned up to belong to a dog. These types of incidents led to the Justice Department collaborating with the National Institute of Standards and Technology, where they formed a commission hoping to improve the issue. The author ends by expressing interest in a higher standard for forensic

The only way to know if Wen By Chaz delivers beautiful hair without trying it yourself is to read a review with pictures from a self-described hair care fanatic who works in a hair salon. Emily McLure's review on Bustle is very informative as she includes pictures on her hair from day one of the test to day seven.

The investigator needs to take a DNA sample from the crime scene or from the evidence provided and make a DNA fingerprint. Then the investigator needs to compare the DNA fingerprint from the crime scene, with all three suspects DNA fingerprint. The suspect that matches the DNA fingerprint is the one that is guilty, of the crime.

The purpose for this investigation was to measure the diameter of the human hair using the knowledge of physics of diffraction and interference and the way light waves travel through a medium. The measurements made in this experiment were done using a ruler, a measuring tape and the wavelength of the laser beam used. The measuring tape was used to measure the distance from the hair to the wall. The ruler was used to measure the distance from the centre of the bright band to the center of the first dark spot which is called the order of minimas. The increasing number of minima corresponds to the centre of the second dark spot which are arranged numerically in order, such as, minima 1, minima 2 and so on.

There has been a murder at the museum in Tokyo, Japan on April 10th. It happened during the night at around 6:45 A.M. on Monday. The list of suspects includes numerous individuals who tried to sell items at the black market, so I needed to eliminate suspects when each piece of evidence was analyzed. The evidence that was found at the crime scene included a half-eaten strawberry, samples of hair, a religious necklace, and fingerprints taken from a wrench. It is believed that the wrench found at the crime was the murder weapon. Finally, I used different genetic analysis strategies like Punnett squares and DNA extractions to narrow down the list of suspects until a single individual was left take into trial.

The solving of a crime is highly dependent on the evidence gathered by the investigative team. The crime scene will be the place where most (but not all) evidence will be located. This evidence can range from tiny hair which are hardly visible to the naked eye to the more conspicuous pieces of clothing left behind by the assailant. Whatever the case, this evidence often may often have a very short life before it either gets destroyed or is contaminated. Hence it is imperative that it be gathered with utmost care and sincerity so that the evidence can lead to the solution of the crime.