7th Period PBS Final Exam Review PART 1 1.1.1 This unit gives you the basics on how to process a crime scene as well as giving information about her death and how she was found. Diagram of Processing a Crime Scene. There is five ways to process a crime scene: Examine Interview Collect Evidence Photograph Sketch Examine: You need to use a systematic search method to find any evidence and obtain a layout of the crime scene. Collect Evidence: Provide links between a crime and victim or between a crime and its perpetrator. Establish that a crime has been committed. Further analyze the crime scene in a lab but make sure that there has been no contamination or tampering to the evidence. Sketch: The sketch of the crime scene should be a diagram including: key, legend, scale and Interview: Trying to establish a theory of the case. You should ask these questions: Did a crime take place? How was the crime committed? What happened? Photograph: The pictures should be close-up, clear and high quality as well as contain a ruler in order to be able to tell the size of the item being photographed. conditions. It should mark any evidence, where the body was positioned, and the layout of crime scene. Anna Garcia Died in the summer and the police was called by a concerned neighbor. She was found face down in her hallway with a sweater on when there was a heat wave. Questions 1. Which of the following are main things to do when processing a crime scene? I. Sketch II. Examine III. Photograph IV. Collect evidence V. Interview A. I,II,IV C. III,IV,V 2. B. Only I D. All of the options What are the things in the picture below called? A. B. C. D. Crime Scene Evidence Markers Whataburger Numbers Number Pyramids Yellow Numbers 3. Name a difference between photograph and sketch. A. A photograph is close up while a sketch is a layout of the whole crime scene. B. A sketch is handmade while a photograph is digitally made. C. Both A and B D. None of the above 4. What season of the year was Anna Garcia found dead? A. Winter B. Spring C. Summer D. Fall 5. Which of the following is required in a sketch? A. Facial expressions B. Colors C. Legend D. Arrows 1.1.2 It is 10:20am on August 14th in Anytown, USA.The police have searched the house and secured the scene. Because the manner of death has not been determined and there are no witnesses, the police are temporarily referring to the scene as a crime scene until they have more information. It is now time for your team to begin your investigation. The scene appears to be limited to the front entry hallway, a 10’ x 15’ space. It is essential that the scene is systematically searched, documented, and all evidence is properly collected. 1. What three things were found on the table next to Anna’s body in the entry hallway? A. Pill, spilled glass, bloody glove B. Needle, footprint, gun C. Spilled glass, diabetic bracelet, vomit D. Fingerprint, needle, vomit 2. The death of Anna Garcia has been considered a crime scene, because the _______ of death has not yet been determined. A. Manner B. Cause C. Time D. Place 3. What was left by Anna’s body, going away from her body, toward the cabinet? A. B. C. D. Footprints Bloody trail Strands of hair Clothes 4. What did the neighbor (Doug Green) say made him question if Anna was okay? A. He did not see her walking her dog that morning, like she does every morning, and when he called she did not answer, nor when he knocked on her door. B. Anna told him the previous night that she was not feeling well, and the next morning she was seen walking with a sweater on despite the current heat wave. C. Her friend, Lilly, could not get a hold of Anna and asked Doug to go check on her, and she did not answer the door. D. He heard her screaming from her house and he saw an unfamiliar car in the driveway. 5. Which is the correct order of events the day of the crime? A. Doug hears Anna’s dog barking for 2 hours straight, he calls her and receives no answer, he knocks on her door with no answer, and then he calls the police. B. Anna calls Doug and says she does not feel well, Doug hears her dog barking, Doug knocks on her door, breaks the window open, and sees Anna lying dead, he then calls the cops. C. Doug hears Anna’s dog barking for 2 hours straight, he calls her and receives no answer, he knocks on her door, and after she didn’t answer, Doug looked in the window at the side of the house and saw Anna lying face down, so he called the police. D. Doug heard Anna yelling, he went to her house to see if she was okay, and he saw her in a physical fight with her ex-husband’s new wife, so he called the cops. 1.1.3 1.1.3 Careers BMS Some responsibilities of a 911 operator include good judgment considering they must prioritize the calls they receive by order of importance, as well as communication skills since the relay information between parties. EMTs access the sick and the injured, but they must have CPR certification to do so. Crime scene investigators involves strict adherence to protocol and exposure to evidence based on a violent occurrence, such as a shooting or a car accident. In order to be a crime scene investigator, you must have a bachelor degree along with extensive forensics training. 1) Why is it important that a 911 operator has good judgment? a) They must prioritize calls they receive by order of importance b) They must know what kind of injury the person has. c) They must be able to tell how the accident happened. d) They must be able to tell how many people to send to the scene for help. 2) What must an EMT have in order to access the sick and the injured? a) A medical degree b) CPR certification c) A PhD d) A doctorate 3) What job involves strict adherence to protocol and exposure to evidence based on a violent occurrence? a) Police officer b) A doctor c) A surgeon d) A crime scene investigator 4) What are two examples of a crime scene? a) Blood, and fingerprints b) A shooting, and a car accident c) A naturally caused death d) Water on the floor that you spilled 5) What kind of training must you have to be a crime scene investigator? a) Extensive forensics training b) Military training c) Medical training d) Exercise training 1.1.4 The Evidence Evidence at a crime scene can help crime scene investigators figure out what happened to the victim. The DNA, fingerprints, blood, shoeprints and hair are all elements that crime scene investigators use to figure out what happened. The crime scene investigators take this evidence to the lab using gloves and proper PPE equipment. Scientists test this evidence to determine whose DNA is whose and help determine who committed the crime. Scientists record all of this in their laboratory journal. 1. What helps determine what happened at a crime scene? A) DNA B)Blood C)Fingerprints D)All of the above 2. Why is PPE equipment important? A)To keep the evidence contamination-free B)To keep yourself safe C)To make the experiment and holding the evidence easier D)All of the above 3. Who tests evidence and helps identify who committed a crime? A)A Doctor B)A Nurse C)A Scientist D)A Surgeon 4. What is the point of a laboratory journal? A)To record everything about the evidence and experiments B)To put all the evidence in the journal as a storage unit C)To draw doodles D)To draw pictures of yourself 5. What is evidence? A)Any thing that can help lead to solving a crime or figuring out what crime scene. happened at a B)Hair C)Both A and B MISSING 1.1.5 and 1.1.6 1.2.1 What is DNA DNA= Deoxyribonucleic Acid Basic structural unit of DNA is called a nucleotide Composed of deoxyribose sugar molecule, phosphate group, and a nitrogenous base Structure of DNA= double helix Structure was not found until 1953 by James Watson and Francis Crick It takes 2 strands of DNA to make a double helix A & G are purines and T & C are pyrimidines Purines have 2 rings Pyrimidines have 1 ring A= Adenine T= Thymine C= Cytosine G= Guanine A pairs with T and G with C to form base pairs. A,T,G,C= nitrogenous bases 1. Which bases are purines? A. B. C. D. Adenine and Guanine Adenine and Thymine Thymine and Cytosine Thymine and Guanine 2. What is a strand of DNA? BAD QUESTION. A. B. C. D. Double helix Purines Pyrimidines Nitrogenous bases 3. Where is DNA found in the human cell? A. Cell membrane B. Nucleus C. Mitochondria D. Cell wall 4. What is DNA? A. B. C. D. Deoxyribonucleic Acid Deoxyribose sugar Driven nucleic acid All of the above 5. If there is 40% of A & T, how much of G would there be? 1. 2. 3. 4. 10% 30% 20% 5% MISSING 1.2.2 Activity 1.2.3 Gel Electrophoresis Understand: Gel electrophoresis separates DNA fragments based on size and is used in Restriction Fragment Length Polymorphism (RFLP) analysis. Purpose: a) sorting DNA strands according to length b) separating other types of molecules, like proteins VOCAB Restriction endonucleases (commonly called restriction enzymes): act as molecular scissors that can cut DNA in specific location. Gel electrophoresis: used to separate macromolecules like DNA, RNA and proteins. DNA fragments are separated according to their size. DNA Strands: molecules so tiny that you can’t see them under a microscope Gel: the filter that sorts the DNA strands. It’s like sponge made of Jell-O with small holes. Electrophoresis: how we push the DNA strands through the gel filter. By adding electrical current, we can make DNA move. STEPS -A solution of DNA molecules is placed in a gel. Because each DNA molecule is negatively charged, it can be pulled through the gel by an electric field. Small DNA molecules move more quickly through the gel than larger DNA molecules. The Result A series of ‘bands’, with each band containing DNA molecules of a particular size. The bands furthest from the start of the gel contain the smallest fragments of DNA. The bands closest to the start of the gel contain the largest DNA fragments. QUESTIONS 1. What allows the DNA molecule to be pulled through an electric field? a. The DNA molecule’s negative charge b. The DNA molecule’s positive charge c. The DNA molecule’s neutral charge d. The string attached to the DNA molecule. 2. What is the difference between the bands that are closest to the start of the gel and farthest from the start of the gel? a. furthest has smaller DNA fragments b. different colors c. there is no difference d. different charge 3. a. b. c. d. What role does restriction enzymes play in gel electrophoresis? they charge the DNA they cut the DNA in specific spot they add the DNA strands together they randomly cut DNA 4. What is the purpose of gel electrophoresis? a. to add DNA together b. to sort DNA strands according to length c. to decode DNA d. to mix up multiple DNAs 5. a. b. c. d. How can we make DNA move? by adding gel by cutting DNA by adding an electrical current by adding water MISSING 1.3.1 Activity 1.3.2 Confidentiality Review Guide In 1996 the federal government passed the Health Insurance Probability and Accountability Act, known as HIPPA. HIPPA gives patients specific rights to keeping their medical information private. Regulates how medical professionals and other people use and disclose certain individually identifiable health information, called protected health information PHI Name, address, birthdate, social security number, past present or feature medical condition, and payment services are protected under HIPPA. Professionals must make sure they are not overheard and limit the information when sharing a patient’s case with another physician Professionals are allowed to leave messages with family members about health care with patient consent Disclosing information to specific agencies is required when: Controlling infectious disease Preventing injury Preventing child abuse Preventing a public threat to health or safety Info can be shared with your legal representative if you’re unable to make medical decisions on your own (if you’re under the age 18) it may also be shared if trying to identify a deceased person, determine case of death, or to notify your family of your condition, status, and location in event of a disaster 1. What year was HIPPA passed? a. 1920 b. 1605 c. 1996 d. 2010 2. Which of the following does HIPPA not protect a. Name b. Dogs name c. Birthdate d. Social security number 3. What age do you have to be before your parents aren’t your legal representative? a. 18 b. 21 c. 16 d. 12 4. Why might private health information be released according to HIPAA ? a. Your boyfriend wants to know how you’re doing b. A stalker wants to know your address c. A doctor needs advise advice on how to treat you<- can also be correct d. You have an infectious disease 5. Who can doctors share private information? With whom can doctors share private information according to HIPAA? a. Parents if under the age 18 b. Boyfriend c. Friends d. Teacher Activity 1.3.3 Was It A Crime? Review Guide Manner of Death– a. Natural “due solely or nearly totally to disease and/or the aging process. If natural death is hastened by injury is not a natural death. Some examples of natural death are: heart disease, SIDS, chronic alcohol abuse, etc. b. Accident “there is little or no evidence that the injury or poisoning occurred with intent to harm or cause death.” Some examples of accidental death are: accidental overdose falls, motor vehicle accidents, etc. c. Suicide “results from an injury or poisoning as a result an intentional, self-inflected act to do self-harm or cause of death of one’s self” Some examples of suicide are: drug overdose, gunshot hanging, etc. Professionals Medical Examiner People that Determine the Manner of Death What they do? A medical examiner's main job is to examine bodies and look for signs of trauma or other causes of death. The medical examiner checks investigative and police reports and looks at the medical records of the deceased, looking for clues as to what caused the death. Additionally, the medical examiner looks at bodily tissues under a microscope and reviews toxicology reports. After all his research, the medical examiner writes up his findings and presents them to police officers, investigators and family Toxicologist Morgue Assistant members. The medical examiner may also be called as an expert witness for court cases. To understand how toxins affect people and animals, toxicologists conduct research. They design studies on toxicological properties and perform laboratory analysis on samples to observe cellular, biochemical and molecular responses to toxins. Morgue Assistants assist pathologists in preparing bodies and organ specimens for examination, while also maintaining the morgue room, supplies and equipment. Morgue Assistant must lay out all surgical instruments and lab supplies, and ensure that they are in good working order. You preserve and photograph specimens; staining slides; and mixing preservation fluids according to specific formulas. You may be asked to fill a body's cranium with plaster and sew up incisions using a surgical needle and thread. Summary of Findings Provide evidence and support for your findings for each piece of evidence you analyzed such as: fingerprints blood type shoeprint hair unknown substance blood spatter DNA analysis Questions 1. I f a woman suddenly dies of a heart attack that is proven by the medical examiner. Would she have died of what manner of death? a. Natural b. Accidental c. Suicide d. Homicide 2. What is the definition of a medical examiner? a. A person who understands how toxins affect people and animals, toxicologists conduct research. b. A person who assist pathologists in preparing bodies and organ specimens for examination. c. A person who examine bodies and takes it to the morgue. d. A person who examine bodies and look for signs of trauma or other causes of death. 3. Which of the following is not an example of an accidental death? a. voluntary overdose b. falls c. motor vehicle wreck d. heart disease 4. What is tested in the things found in Anna Garcia’s apartment? a. Fingerprints b. Shoeprint c. Hair d. All of the above 5. Which of the following assist pathologists in preparing bodies and organ specimens for examination? a. Medical examiner b. Toxicologist c. Coroner d. Morgue assistant