Hello ladies and gentlemen, my name is Sandy Doan. I am a hair analysis expert. I work in the lab of California’s Police Department. I work using the Scanning Electron Microscope, also known as SEM, for analyzing different types of small evidence. I have been spent 8 years on this job which why I am wearing glasses due to the constant straining over the years. However, today I am here to determine whether or not the three suspects are responsible for the murder that has been committed. Using the lab results about the hairs, I am going to explain how to find the suspect with the hair analysis that we have collected. In order for the hair samples to be convincing evidence to catch a criminal, the evidence has to make sense. Knowing the different parts of the hair and their functions greatly helps in this. The root of the hair has a particular structure. It is made of the follicle which is the tube like depression or pocket in the skin or scalp that contains the hair root, the hair bulb which is the lowest area or part of the hair …show more content…
Medulla patterns are often not very helpful in forensics for a few reasons. The patterns can often differ from hair to hair; some hairs will have it while others won’t. This is because the medulla only shows in coarse hair while fine, blond hair do not have a medulla. Because of this it often is used in forensics. The cortex of the hair is located between the medulla and the hair cuticle. It is the thickest part of the hair. It contains most of the hair pigment, giving it its color. This is often in finding out what color of hair the suspect or criminal had. The final part of the hair is the outermost part, known as the cuticle. It is a hard shingle like cover that is the first line of defense against any damage to the hair. It does not provide the pigment of the hair. It protects the other two layers of the
Case 1: Name of Case (Hair): Murder of Leanne Tiernan Victims: Leanne Tiernan Suspects: John Taylor Connection to case: Tiernan had a scarf around her neck that had a few hairs attached to it. There was no sufficient DNA from the hair but they matched the mitochondria to John Taylor. Case 2: Name of Case (Fiber): Murder of Nancy Titterton Victims: Nancy Titterton Suspects: John Fiorenza Connection to Case:
Timothy Bridges Victim: Timothy Bridges Suspect: Timothy Bridges How the hair fiber made a connection to the case? The hair analysis helped prove that Bridges was not the actual person who committed the crime. After 25 years of him being in prison they found him innocent because of hair evidence.
Hairs: Name of the case: The murder of James Anagnos Victim: James Anagnos Suspect: Frank Wright How the hair made a connection for the case: James Anagnos was found dead in her restaurant with a handful hair. DNA analysis, later, found the hair was Frank Wright but detectives only were able to create him a suspect after they found put him and the victim had an argument before closing that night- along with the hair. Name of the case: The murder a cab driver Victim: A unknown cab driver Suspect: Santae Tribble How the hair made a connection for the case: A case from 1978 involved a murder in Washington D.C.
Wayne Williams Essay Hair and fibers seem like tiny useless objects,but they have a huge impact when it comes to forensic investigations. Hair strands and fibers hold more information than we can see. For example hair can tell where you have been,what you have eaten, and what race you are. Also DNA can be pulled from strands of hair.
Wayne Williams was found guilty of the killing of two people. Even years after William’s still tries to persuade the idea of him being innocent. Just like fingerprints, hair analysis is following the same path. I think that DNA fingerprints will become bigger and more accurate of accusing killers, the use of hair analysis will decrease, but I do not think hair analysis should be taken away.
Since there was no root of the hair the tissue DNA of the hair could not get a precise identification. Mitochondrial DNA was instead used to narrow down the identity. It could not give a precise identification, but it did narrow it down to be a female in the Anthony family. The hair showed characteristics of decomposition on it (“Forensic Analysis of the Casey Anthony Trial”). They also did an odor analysis in the trunk of Casey’s vehicle.
In the lab report three students are tested along with one suspect. Student number two’s DNA matched the suspects DNA. The student’s DNA’s are cut with five different enzymes as well as the suspects DNA. Student two’s DNA matched exactly with the suspects DNA; the other two student’s DNA did not resemble the suspects DNA at all. (Choi, et al, 2008) DNA fingerprinting is used a lot in determining who committed a crime.
There are different ways that prints can be developed in crime labs; by the use of traditional powders, fluorescent powders, chemicals, and superglue. They can be viewed under laser and UV lighting. When the finger print analysis was done on the magazine, Christopher Vaughn’s fingerprints did not show
‘Well what?’ ‘Well can’t you see it?’ ‘Well no.’ ‘Well it’s hair?’ ‘Where?’
This DNA sample was tested to determine if the DNA left on Mary Sullivan was a match. This proved to not be a match. This shows some suspicion to the final verdict of the
Do you want to learn about the big, hairy, nine foot tall man eating beast in the woods also known as Bigfoot? If your answer is yes, boy do I have a paper for you. Bigfoot sightings and the stories that go along with them, are a hoax. Articles exist that say how easily people can make Bigfoot sightings.
Thus, silicone does give your hair the “Barbie” effect, making it look shiny and healthy but it’s slaughtering your hair at the same
This lead to synthetic dye to color cloth and hair. Nowadays hair color is designed to enhance your natural beauty, being less damaging to hair and move vividly color in a variety of shades. There can be found all over the market. Today hair coloring is very popular over 75% of women color their hair.
I have been going to the same hair salon for years. Although I know the women that work there, and in turn they know me, I have never had one conversation with them about anything besides how I would prefer my hair to be cut. I would avoid “small talk” at all costs, and I would use my cell phone as a shield, to hide behind. However, that was until I attended a civility panel at the northeast campus of Community College of Philadelphia. The individuals at this panel, Kathy Mullright, Tosh Trailer, Blendina Hack, and Corine Carmathy, caused me to realize that being friendly, by putting down my cellphone, saying hello, creating conversation, or even something so small as making eye contact causes me no harm.
When choosing the type of chemicals and products to use on your hair, it is of paramount importance to consider the type of your hair. We have different hair types and they all require totally different hair products and care. Some people have fine thin hair while other has thick hair. Others have curly hair while others have straight hair. Therefore you should always analyze the hair product that you are targeting to buy for use on your hair according to what is best for the type of hair that you have.