...This week assignment was based on us to write about how biological evidence is obtained at the crime-scene. Biological evidence means the evidence that is commonly recovered from crime scenes. Such evidences are in the form of blood, saliva, sperm, hair, tissue, bones, teeth, blood, or other bodily fluids.Since blood, semen, and saliva originate as liquids, they quickly coat or penetrate surfaces they are deposited on, and when dried they are difficult to remove. Because no two humans are genetically the same (except for identical twins) these body fluids are unique to the person they originated from. By performing DNA analysis of these fluids or stains, a genetic marker profile can be obtained that is essentially specific to that individual. At a crime scene, many types of biological evidences may be present. Each type of biological evidence has a unique importance and its own probative value. Ordinarily, biological evidence are photographed or collected from crime scene and sent to the laboratory for a DNA investigation. The DNA specific to each individual is an effective means of identification. DNA analyst can associate evidence to a person and give the frequency of occurrence in a random population. However, microscopic hair examinations tend to be subjective and highly dependant on the skills and integrity of the analyst. For this reason a reported hair comparison must contain DNA information. DNA does more than just identify the source of the sample; it can place...
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...Biological Evidence Paper Shirley Newton CJS/215-Introduction to Forensics June 18, 2016 Professor: James Anderson Biological Evidence Paper Various biological samples can be identified as significant. To make a significant in or of a substance a fluid has to present within itself. A person DNA can do a lot of things in the specific biological world: such as link someone to a crime scene and identify a person(s). DNA can be taking from various different sources including blood, skin cells, semen, hair, saliva, and tissue. The use of organic materials, such as blood, semen, hair, salvia, and skin tissue, in forensic science biological evidence. Forensic scientists use different methods to identify their victims and criminals such as Fingernail scrapings and bones. A very important part of solving sexual assault and Violent crime cases are the use of biological evidence. A forensic scientist is able to locate some of the smallest pieces of biological evidence from a crime scene that you wouldn’t hardly be able to see it with the naked eye. The principles basis is that every time a person enters a room or environment, they take something with them and leave something behind which would be known as biological evidence. In order to avoid cross contamination there are special needs and techniques that are required to make sure the preserving process is done right. Whether the process...
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...!1 Biological Evidence Pedro Brache CJS/215 12/22/2014 Jerry Shoate !2 Biological Evidence Biological evidence is evidence that can be tested through DNA mapping and other profiling methods. Each specific type of evidence, whether it be saliva sample or semen sample, needs special techniques in acquiring and preserving in order to avoid cross contamination. These types of evidences are cross examined with a suspected person to either exclude them or prosecute them for the crime. In this paper I will discuss the different types of evidence and how it is preserved when it is obtained from a crime scene. Different Types of Evidence A forensic team might encounter different types of evidence at a crime scene. It is on the team to handle and ensure the proper transportation of that evidence to the laboratory. There are different teams assigned to a specific type of evidence. Some are in charge of ballistics for example, while others handle blood stains. Different crimes may present different types of evidence to look for. In a sexual assault case, investigators may be looking for bodily fluids or hair samples. Blood is a very good source of evidence. The DNA can be extracted from the blood and help narrow down suspects. The way the blood spatters are found in the crime scene can help investigators piece together the events of the crime. This is why it is important to correctly document and handle it while avoiding cross contamination. Forensic scientists are faced with either...
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...instrumentation with chemistry as the main core of discussion. Forensic chemistry is a broad and diversified field of science. It includes all branches of chemistry and the application of its principles to solve crimes when it arise in the administration of justice. Significantly, Forensic chemistry is vital in crime detection when the components or chemical composition, structure of physical evidence/s collected from the scene of the crime are needed to support in the speedy solution of crime. Application of forensic chemistry is legally applied to the following: 1. Primarily, Forensic Chemistry deals in the recognition, identification, preservation, packaging & transportation of physical evidence collected at the crime scene. 2. In crime detection, it is applied in the identification of poisons, blood, semen, feces, urine, saliva, and other body fluids whether fresh or dried. It also include other stains of interests from ob-gynecological origin, mineral stains, fruits and/or vegetable stains. 3. It is involved in determining the kind of ink used in signature writings, and the kind of paper of a questioned document. 4. The knowledge of properties of volatile substance like organic solvents (alcohol, acetone, etc), accelerants (gasoline, kerosene, oils), and miscible materials such as textile fibers from clothing, are applied in forensic analyses of arson cases. 5. Identification of air,...
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...personalized medicine for humans * Gene therapy Write a four to six (4 to 6) page paper on your chosen topic. Organize your paper into sections corresponding to the following requirements: 1. Biological basis. Describe the technology. Discuss what it accomplishes. Elaborate on the scientific principles that make this technology possible. Your goal in this section of the paper is to show the instructor that you understand the underlying science behind the technology. Describe how exactly the technology works. Discuss the biological principles that underlie this technology. 2. Social and ethical implications. Without disclosing your personal view about this technology, provide an analysis of its social and ethical implications. State the ethical concerns apparent in the use of this technology. Discuss the benefits and risks. Your goal in this section is to look at all sides of the issue. In the next section, you will give your opinion. 3. Personal viewpoint. In the previous section, your goal was to be as objective as possible, to look at all sides of the issues. In this section, your goals are to give a personal opinion about the technology and provide a justification of that opinion. 4. Use at least three (3) quality resources in this assignment, in addition to the course text. Note: Wikipedia and similar Websites do not qualify as quality resources. The body of the paper must have in-text citations that correspond to the references. Integrate all...
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...moreover, those shows were written with the most insignificant clue becoming the one piece of evidence that is the key to the whole case. Just as dated as those television shows, so is the investigative practice. Present day, almost all investigative crimes involve the collection of forensic evidence that is broken down into two categories: organic versus inorganic evidence. This paper will detail the differences between organic and inorganic evidence, explain the strengths and weaknesses of each, and breakdown the significance of either organic or inorganic evidence as it travels through the justice system from the crime scene to prosecution. The way evidence collected can be broken down into two categories; organic and inorganic. According to Saferstein (2011), “Organic substances contain carbon, commonly in combination with hydrogen, oxygen, nitrogen, chlorine, phosphorus, or other elements. Inorganic substances encompass all other known chemicals substances. Each of these two broad groups has distinctive and characteristics properties (p. 123, Para 3). In laymen’s terms, organic evidence is biological evidence that has once lived (i.e. blood, hair, or any liquid that originates from a human or animal). Whereas, the second category inorganic evidence; it’s the non-biological evidence collected at a crime scene. Inorganic evidence has never lived before (i.e. bullets, fiber evidence, chipped paint, murder weapon, a rock or water). The reason why...
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...and found the head along with a nearby garbage bags that contained the victim’s dismembered parts. “When police arrived, Wright was sitting on the front porch. At first, he tried to tell the cops that the head and body on the sidewalk were pieces of a CPR dummy. However, he soon confessed to killing the child, saying he left Jori on the sidewalk so Jesslyn (Jori’s Mom) would "feel stupid when she saw the head." As the lead investigator to the Jori Lirette case the first thing I would have address would have been the parents. It was clear that someone who commit such a heinous crime would has some deep psychological issues. A crime like this was definitely from someone who knew the victim. As the lead investigator it was a clear case, the evidence was seen the victim's head was seen the corner of the street and the weapon that was used was in the families possessions. Looking for the knife would have been an essential part to the search. The case was solved 30 minutes after the police arrive on the scene, because then Jeremiah Wright confesses that he killed his 7 years old son, Jori Lirette. He decapitated his disabled 7-year-old son because he had grown tired of caring for the boy, who had cerebral palsy and heart problems, and needed a...
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...replace these African peoples with Arab herders.” In the Democratic Republic of Congo the dead range from three to five million. (Genocide Watch) This type of violence is occurring as I write this paper. Syria, Sudan, and the Democratic Republic of Congo are all male dominated cultures. The book Demonic Males, by Richard Wrangham and Dale Peterson, makes a strong case that human violence, especially in males, is biological. Wrangham and Peterson do a nice job presenting evidence of our link to the great apes. The authors also prove that apes are capable of premeditated acts of violence. Psychologists believe human behavior is 50 percent biology and 50 percent culture while traditional conception of human behavior maintains that people are good or bad, depending on familial and cultural influences. When people do bad things, it is because they came from a dysfunctional family, or they have psychological issues. When culture is responsible for violent acts, a traditional conception is that the culture has the wrong belief system. This culture’s belief system is wrong because it differs from the norm. The norm depends on the culture doing the judging. I believe that human violence is both biological and cultural. Charles Sibley and Jon Ahlquist, two Yale Biologists, provided evidence through DNA analysis that placed humans “right inside the great ape group. This extraordinary idea, if true, would demolish the concept of apes as their own discreet group separated from humans by...
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...Dispositional, Biological and Evolutionary Theories Paper Diana P. Sanchez PSY/405 September 03, 2014 Sharon Friedman Dispositional, Biological and Evolutionary Theories Paper Personality theories have evolved tremendously in the psychology field. There’s a wide variety of personality theories that have been created over the years. The theorists responsible for their creation have all mainly gathered and altered information from previous theorists and made changes to them; indicating that characteristics of any individual can affect the ideas behind their work (Feist, Feist, & Roberts, 2013). The comparison between the theories (dispositional, biological and evolutionary), comes to show that theirs many similarities and differences between them; as well as weaknesses to them, and strengths. As further research studies into the definition of human behavior, theorists created tests such as the big five test. Comparison Dispositional personality theory, defines the identity of traits and types of characteristics that help determine one’s personality (Feist, Feist, & Roberts, 2013). This theory doesn’t eliminate the use of sub-conscious, but its main focus is on the individual and its conscious thoughts as the center point of personality. It comes to prove the free-will of humans, as well as the possibility of human’s ability to determine their future. The theorist’s responsible for this personality theory, are: Gordon Allport (1897-1967), and Robert...
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...A2 Psychology: G543 Options Paper Exam Technique and Tips General Exam Information You will be assessed for this unit in a 1.5 hour examination. You will need to answer four questions; two questions from the topic of Forensic Psychology and two questions from the topic of Health and Clinical Psychology. This means you will have about 20 minutes of writing time per question, plus a little bit of thinking time. This is not a long time to maximise your marks, so there are some simple exam techniques to follow below. Each question will be worth 25 marks and be divided into two parts; part (a) and part (b). Part (a) asks you to demonstrate descriptive skills and is worth 10 marks, whilst part (b) asks you to display evaluative skills and is worth 15 marks. General Exam Technique/Advice * Choose the right questions A mistake made by some students is answering questions on a topic they haven’t studied! So ensure you firstly locate the two sections of the paper that you can answer questions on; Forensic and Health/Clinical. In each of these two sections, there will be a choice of four questions. You will only choose two questions per section, so pick which questions you are going to answer and cross out the others. Choosing which questions to answer may be difficult than it first appears because some questions may sound similar. You need to become familiar with the layout and wording of questions prior to your exam. * Know your timings For each question you...
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...Somatic Symptom Disorder A Nature vs. Nurture Debate By Jennifer Nguyen July 3, 2015 The Disorder While many mental disorders are well-known and commonly referred to, such as bipolar disorder, depression, and anorexia, one mental disorder that has less limelight are somatoform disorders. WebMD defined somatoform disorders as “mental illnesses that cause bodily symptoms, including pain” where these symptoms cannot be “traced back to any physical cause” and they are “not the result of substance abuse of another mental illness” (WebMD). The Criteria & Associated Behaviors In DSM-IV, somatization disorder was the major somatoform disorder. There were many criteria for this disorder. However, in DSM-V, somatoform disorders were largely replaced by the term somatic symptom disorder, hereon referred to as SSD, which DSM-V characterizes by “somatic symptoms that are either very distressing or result in significant disruption of functioning, as well as excessive and disproportionate thoughts, feelings and behaviors regarding those symptoms. With this new change in DSM-V, somatization disorder (previously in DSM-IV) is now completely removed and replaced. The previous diagnosis of somatization disorder required very specific criteria. However, the new criteria for SSD is not as specific, but it does state that “somatic symptoms must be significantly distressing or disruptive to daily live and must be accompanied by excessive thoughts, feelings, or behaviors” (DSM). To see...
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...(CSI) Level 3 COURSE CODE – OSC532(V1.0) COURSE CODE – OSC532(V1.0) UNIT 5 – EVIDENCE HANDLING zoe wRIGHT UNIT 5 – EVIDENCE HANDLING zoe wRIGHT 2015 2015 Introduction This unit will be discussing the various packaging techniques in handling evidence taken away from crime scenes with the most appropriate ones being considered for each type of evidence found. It will be discussed having the implications of poor packaging and the results which lead to contamination of all evidence if not packaged properly and the outcome when it is taken to court also the reliability of the CSI’s involved. It is also the job of the CSI to make sure all health and safety procedures are in place before handling and taking any piece of evidence as there are varying risks involved like sharps, contamination of evidence, weather conditions other witnesses interfering with the scene, other personnel and any form of biological hazards. These must be taken seriously and analysed before any search. Unit 5 1. Detail the forensic evidence that would have been taken away from the scene by the perpetrator. The crime scene is probably the most important part of any criminal investigation. It is where forensic science starts. Locard’s Principle states that every contact leaves a trace (Locard, 1928). This is the primary rule of scene investigation – you are looking for ‘contact’ evidence that will help solve the crime. This trace may be in the form of a specific recoverable...
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...or her mother or father. Some say these factors can pass through a person’s genes and other’s say that some actions are human nature. In this paper Delores will discuss the biological and humanistic approaches to personality. She will also discuss how growth needs influence personality formation, describe biological factors that influence the formation of personality, examine the relationship of biological factors to Maslow’s theory of personality, and explain the basic aspects of the humanistic theory, which are incompatible with biological explanations of personality. Biology revealed many aspects of how the human body works and what it needs to stay healthy. “In 1953 James D. Watson and Francis Crick discovered that DNA was structured as a double helix (Friedman & Schustack, 2009). This discovery was a huge accomplishment in the study of human biology. Charles Darwin took human biology a step further. Darwin used the fact that not one human being is the same to support his evolutionary personality theory. Darwin believes that humans are “people evolved directly from more primitive species (Friedman & Schustack, 2009).” For example, Brian G. Richmond and David S. Strait wrote an article called “Evidence that humans evolved from a knuckle-walking ancestor (Brian G Richmond and David S Strait 2000).” This article explains that evidence has surfaced proving that humans could have once been gorillas. A Darwinian approach to that idea would be that over time conditions in the...
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...| Syllabus College of Natural Science BIO/100 Version 2 Introduction to Life Science with Lab | Copyright © 2009, 2007 by University of Phoenix. All rights reserved. Course Description This course applies a broad, conceptual understanding of biology. Students are introduced to scientific ideologies and concepts that not only shape the biological world, but also shape humans. Students examine the scientific method, evolution and biodiversity, the biology of cells, physiology, the dynamics of inheritance, and the effect humans have on the environment. The text emphasizes methods and the theoretical foundations of ideas, while minimizing isolated facts. It stresses the integration of ideas, making connections that form an understanding of the living world. The weekly online labs add a practical component to the class. The labs build upon the concepts in the text and offer a chance to interact with the material and further their understanding. Policies Faculty and students/learners will be held responsible for understanding and adhering to all policies contained within the following two documents: University policies: You must be logged into the student website to view this document. Instructor policies: This document is posted in the Course Materials forum. University policies are subject to change. Be sure to read the policies at the beginning of each class. Policies may be slightly different depending on the modality in which you attend class. If you have...
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...Gender Identity Paper Brandie Thurman PSY/340 May 25, 2013 Dr. Stephanie Sencil-White There are many biological, psychological, and sociological factors involved in the formation of gender identity. Gender identity is not completely understood as it is much more complex than the joining of a sperm and an egg. For many people, the terms “gender” and “sex” are interchangeable. Biological sex and gender are different; gender is not inherently connected to one’s physical anatomy as biological sex is. When one thinks’ of the term “gender”, we are referring to the role and personalities one assumes within society, for example in American culture females tend to be perceived as more nurturing and males are aggressive and dominant. Hormones and behavior affect gender identity in significant ways each with a distinct purpose. To understand the difference of biological sex and gender, nature versus nurture, and how the environment has an effect this paper will review and explain the interactions between hormones and behaviors and how those interactions affect the determination of gender identity. Gender development starts at the point one is conceived. Gender identity is defined as an individual’s self conception of being either male or female, as distinguished from actual biological sex (Britannica, 2013). Gender differences exist in nearly every social phenomena and for most persons, gender identity and biological characteristics are the same however there are some circumstances...
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