Bio Lab Report Crime Scene

On Saturday morning of the 24th of October, there was pass over by an employee of a homicide incident on 4011 N. Central Eave, Phoenix, AZ. University Center building on the 3rd floor of Arizona submit University. The victim was describe as a 24 year old egg white female, by the name of Kelly who works as a programs coordinator for Arizona State University. The victim was working new hours as universal on a Friday night, she was on her obligation cubical.The carcass was rig laying on the floor in front of her desk c sensory hair, the body was facing up with 3 grass wounds on her body the action of the shots were nonp beil in right shoulder, right hip, and warmheartedness of the stomach. Observations arrange in the offensive activity film were the chair was knocked over, the victim was facing up instead of facing subjugate. There were weed holes in the w distributively(prenominal)board as swell as the cabinetry and biologic stains of the victim. cultivation gat hered about the victim she appeared to be talking to her mother sequence the incident happen, and it was not unusual seen her work late at night.Also, there was some entropy about five mistrustfuls that might learn been involve in the homicide. Licensee Scale S. Microbiology Professor, at the time of the strike he declared he was looking for money from students so he could buy another pint of beer, and was wearing blue angel t-shirt and jeans. Daffy Patrick D. Microbiology Lecturer, at the time of the murder he say he was drinking at Hooters and was comprehend a blue button down shirt and black pants.Olson John P. biology Professor, at the time of the murder he stated he was at an all night Chinese buffet, and was wearing blue flannel shirt and Jeans. Hutchins Jason O. Chemistry Lecturer, at the time of the murder he was article of faith Chemistry 101 testing ground, and was wearing a blue polo shirt and Jeans. Waffle Debra A. research laboratory Technician, at the time o f the disgust scope she stated she was preparing for Microbiology 206 lab, and she was wearing blue lab coat and khaki pants.The homicide case is nether investigation, once there has been examine the pieces of hair, fabric, and job samples from the suspects, it will be suss out who was the murder of the victim. Methods and Materials The investigation began by first collection yard from the crime scene and suspects. This includes finger scores, hair and fiber samples, along with line of merchandise samples. on with these, a bullet was found at the crime scene, which was added to the list of essay. Fingerprint examination To collect the reproduces from both the suspects and the crime scene, the print lifting technique was utilize.This method included use a fingerprint wand and grind to dust the fingerprints on the object, and thus pose adhesive tape over the potentiality prints to lift the fingerprints image. The adhesive and fingerprint were then transferred to a bac king card to be examined. To analyze the prints, a magnifying glass was use to determine if the prints pattern was an arch, loop or curl. The fingerprints examined are a example of biological evidence. Fingerprints Suspect Arch Loop volute Daffy x HutchinsLicensee Olsen Waffle We then compared these fingerprint patterns with the fingerprint quiet at the crime scene, which was a loop. Metallurgy Next, the bullet found at the crime scene was tested utilize metallurgy. The bullet was a type of sensual evidence. To determine what type of metal the bullet was do of, the densities of the three standard metals in the tool kit had to be determined. To metre the metals mass, an electronic scale was utilise while a water displacement was used to measure the hoi polloi. From these measurements, the engrossment was calculated (D=MN).The mass, mountain and density of the metals in the kit were lactated as follows Aluminum o Mass = 8. 27 g intensiveness = 4 ml = 2. 07 vim Density = M N atomic number 29 Mass = 57. 1 g Volume = 7 ml Density = MN = 8. 16 g/ml o Mass = 37. 95 g o Volume = 4 ml o Density = 9. 49 g/ml As stated before, to find the volume for all the measurements, water displacement was used. By this, the change in the water direct (measured in ml) in the graduated cylinder was measured before and after each metal was added to determine its volume.For the bullet, it was determined that o Mass = 12. 9 g o Volume = 2 ml o Density = 6. 45 g/ml Because the bullet was silver, it was determined that it was not do of copper and u to the fact that density wasnt similar to aluminum, it is likely that the bullet was made of steel and maybe another metal. vulcanized fiber and cop Testing The next pieces of evidence that were analyzed were hair and fiber. The hair samples are a type of biological evidence while the fibers are a type of physical evidence.For these samples, microscopy was used, which allowed the researchers to examine and identify the handsome features of each. The tables below include the collected data. Hair Color Features Brown Short, smooth nordic Short, split Black Short, wiry try out Fiber Texture Blue Woven, denim-like pinko Tight, cylinder-like Tulle Wispy, feather-like Tulle and wispy/feather By study the evidence found at the crime scene to the samples collected from the suspect, it narrowed the possible suspects down to Olsen and Waffle since both of their fibers were found at the crime scene.Blood Testing The stick up task was to examine the stemma samples collected from the suspects to the blood found at the crime scene. The blood samples were a type of biological evidence, but chemical reactions were used to determine the blood type. Anti-A Serum, Anti-B Serum and an Anti-Re Serum were used to test what type of blood he samples were and if they had an Re D antigen. Three drops of each suspects blood, along with the blood collected at the crime scene, were placed into three antithetical wells of a cl ean blood typing plate.Three drops of each blood serum were added to the three different wells and then excited until they either reacted or remained inactive to the serum. A way to tell if the blood reacts to the serum is if it results in agglutination, or clumping. The results are listed in the table below. Suspect Reagent ABA-Re Blood eccentric Anti-A Serum Anti-B Serum Anti-Re Serum A+ Because some of the blood tests didnt react with the serum, the researchers had to SE the blood type information provided in the suspects profile and then determine how the blood would have reacted if the tests worked properly.Analysis Fingerprint Testing by and by analyzing the data from the crime scene and the suspect sheets provided some educated assumptions can be made as to the possible perpetrator. The prints found at the scene of the crime had a loop configuration. Considering Licensee has an arch configuration, and Hutchins has a whorl configuration, they were ruled out as potential su spects. The suspects who possessed prints similar to those found at the scene were as follows Daffy, Olsen, and Waffle.