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Watch the video and then answer the questions.

Watch the video and then answer the questions. Video Link: http://www.aetv.com/crime-360/video/index.jsp?bcpid=1463371098&bclid=1459293923&bctid=1620577032. 1. True or False? When testing for DNA, investigators must use all of the sample to make sure they get an accurate test.

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Watch the video and then answer the questions.

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  1. Watch the video and then answer the questions. Video Link: http://www.aetv.com/crime-360/video/index.jsp?bcpid=1463371098&bclid=1459293923&bctid=1620577032 1. True or False?When testing for DNA, investigators must use all of the sample to make sure they get an accurate test. 2. Where do we find DNA in a cell?A. Cell membrane B. Vacuole C. Nucleus 3. How long does the sample sit in the heat block?A. 1 hour B. 2 hours C. 3 hours 4. What instrument is used to spin the sample?A. Centrifuge B. Extraction Tube C. Washing machine 5. In which layer would we find DNA? A. Top layer B. Middle layer C. Bottom layer

  2. The answers are … 1. True or False?When testing for DNA, investigators must use all of the sample to make sure they get an accurate test. 2. Where do we find DNA in a cell?A. Cell membrane B. Vacuole C. Nucleus 3. How long does the sample sit in the heat block?A. 1 hour B. 2 hours C. 3 hours 4. What instrument is used to spin the sample?A. Centrifuge B. Extraction Tube C. Washing machine 5. In which layer would we find DNA? A. Top layer B. Middle layer C. Bottom layer

  3. Intro to Forensics Mr. DeGeorge Forensics 2011

  4. Forensics vs. Forensic Science • Forensics - pertaining to, or used in courts of law. • Forensic Science- The application of the sciences to answer questions pertaining to interested in the legal system. (Using science to solve crimes)

  5. 15 Subdivisions of Forensics 1.Forensic anthropologyis the application of physical anthropology in a legal setting, usually for the recovery and identification of skeletonized human remains. 2. Forensic archaeologyis the application of a combination of archaeological techniques and forensic science, typically in law enforcement. 3.Forensic chemistryis the study of detection and identification of illicit drugs, accelerants used in arson cases, explosive and gunshot residue. 4. Criminalistics is the application of various sciences to answer questions relating to examination and comparison of biological evidence, trace evidence, impression evidence (such as fingerprints, footwear impressions, and tire tracks), controlled substances, ballistics, firearm and toolmark examination, and other evidence in criminal investigations. In typical circumstances evidence is processed in a Crime lab. 5.Forensic dactyloscopyis the study of fingerprints.

  6. 6. Digital forensics is the application of proven scientific methods and techniques in order to recover data from electronic / digital media. Digital Forensic specialists work in the field as well as in the lab. 7. Forensic document examination or questioned document examination answers questions about a disputed document using a variety of scientific processes and methods. Many examinations involve a comparison of the questioned document, or components of the document, with a set of known standards. The most common type of examination involves handwriting, whereby the examiner tries to address concerns about potential authorship. 8. Forensic DNA analysis takes advantage of the uniqueness of an individual's DNA to answer forensic questions such as paternity/maternity testing and placing a suspect at a crime scene, e.g. in a rape investigation. 9. Forensic entomology deals with the examination of insects in, on and around human remains to assist in determination of time or location of death. It is also possible to determine if the body was moved after death. 10. Forensic odontology is the study of the uniqueness of dentition, better known as the study of teeth.

  7. 11. Forensic pathology is a field in which the principles of medicine and pathology are applied to determine a cause of death or injury in the context of a legal inquiry. 12. Forensic psychology is the study of the mind of an individual, using forensic methods. Usually it determines the circumstances behind a criminal's behavior. 13. Forensic toxicology is the study of the effect of drugs and poisons on/in the human body. 14. Mobile device forensics is the scientific examination and evaluation of evidence found in mobile phones, e.g. Call History and Deleted SMS, and includes SIM Card Forensics 15.Trace evidence analysis is the analysis and comparison of trace evidence including glass, paint, fibres and hair.

  8. Questionable Forensic Techniques • Comparative bullet-lead analysis- Analyzing the chemical make-up of lead bullets is no longer an accurate method in determining the origin of a bullet. • Forensic Dentistry- Bite mark evidence is no longer an acceptable technique and DNA is considered a much better technique. • Polygraph(Lie Detectors)- Can be indicators of truthfulness but the tests can be manipulated by the person being polygraph and is not admissible in court.

  9. Homework • Find a picture that reminds you of a subdivision in Forensics • Define in further detail your subdivision and explain why you chose the picture in which you did.(1 paragraph)

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