Forensics Midterm review

Forensics Midterm review - CHAPTER 1 1. How would you...

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CHAPTER 1 1. How would you define forensic science or criminalistics? a. Forensic science is the application of science to the criminal and civil laws that are enforced by police agencies in a criminal justice system. 2. What are the services of a typical comprehensive crime laboratory in the criminal justice system? a. Basic services: physical science unit, biology unit, firearms, document examination unit, photography unit b. Optional services: latent fingerprint unit, polygraph unit, voiceprint analysis unit, crime-scene investigation unit 3. What are the differences between the Frye and Daubert approaches to the admissibility of scientific evidence in the courtroom? a. Frye: the court must decide whether the questioned procedure, technique, or principle is ‘generally accepted” by a meaningful segment of the scientific community b. Daubert: the trial judges assume the ultimate responsibility for acting as a “gatekeeper” in judging the admissibility and reliability of scientific evidence 4. What are the role and responsibilities of the expert witness? a. Forensic scientists may be required to testify with respect to their methods and conclusions at a trial or hearing b. After establishing their credibility, their testimony might aid n determining the truth of the matter 5. Review the proper collection and packaging of common types of physical evidence as described in Appendix I of the textbook. a. CHAPTER 2 1. How would you define physical evidence? a. Physical evidence encompasses any and all objects that can establish that a crime has been committed or can link a crime and its victim or perpetrator 2. What are the responsibilities of the first police officer who arrives at a crime scene? a. The first officer arriving on the scene of a crime is responsible for preserving and protecting the area as much as possible. 3. What are the steps to be taken for thoroughly recording the crime scene? a. After determining the boundaries of the scene and establishing the perpetrator’s path of entry and exit, you can start to use photography, sketches, and notes to mark occurances and evidence 4. What is the proper procedures for conducting a systematic search of crime scenes for physical evidence? a. The search must be thorough and systematic b. How one conducts a crime scene search will depend on the locae and size of the area, and well as on the actions of the suspects and the victims at the scene 5. What are proper techniques for packaging common types of physical evidence? a. Physical evidence must be handled and processed in a way that prevents any change from taking place between the time it is removed from the crime scene and the time it is received by the crime lab b. Evidence must be packaged separately in order to prevent cross contamination c. Forceps and tools may be used to pick up the evidence d. Plastic pill bottles with pressure lids, manila envelopes, plastic bags and paper folded into a “druggist” fold can be used to hold evidence
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Forensics Midterm review - CHAPTER 1 1. How would you...

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