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What is the primary function of forensic chemistry in criminal investigations?
What is the primary function of forensic chemistry in criminal investigations?
- To determine the guilt or innocence of suspects
- To predict future criminal behavior
- To conduct psychological evaluations of offenders
- To analyze physical evidence collected from crime scenes (correct)
Which role does a forensic chemist primarily fulfill in relation to evidence?
Which role does a forensic chemist primarily fulfill in relation to evidence?
- Analyzes and interprets chemical evidence (correct)
- Collects evidence from crime scenes
- Manages the crime laboratory
- Interviews witnesses during investigations
What distinguishes class characteristics from individual characteristics in physical evidence?
What distinguishes class characteristics from individual characteristics in physical evidence?
- Class characteristics can identify a specific item, whereas individual characteristics group items.
- Class characteristics are unique, while individual characteristics are general.
- Class characteristics apply to groups of items, while individual characteristics pertain to a single source. (correct)
- Class characteristics are irrelevant in forensic investigations.
Why is the preservation of physical evidence crucial in forensic investigations?
Why is the preservation of physical evidence crucial in forensic investigations?
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What type of tests are used to initially determine the presence of blood at a crime scene?
What type of tests are used to initially determine the presence of blood at a crime scene?
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What is the liquid portion of blood that constitutes 65% of its total volume called?
What is the liquid portion of blood that constitutes 65% of its total volume called?
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What is the main purpose of conducting a presumptive test for blood?
What is the main purpose of conducting a presumptive test for blood?
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Which of the following is NOT a factor in the loss of physical evidence according to forensic principles?
Which of the following is NOT a factor in the loss of physical evidence according to forensic principles?
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