Firearms Evidence Collection
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Questions and Answers

Which of the following is NOT a procedure to be followed in collecting and packaging firearms evidence at the crime scene?

  • Marking a bullet fired on its base for identification
  • Marking an empty cartridge case on its base for identification
  • Unloading the weapon before shipping it to the crime laboratory
  • Avoiding inserting a stick or pencil into the barrel of a weapon (correct)

    • Why are grooves rifled into the bore of a gun?

  • Manufacturer can put its unique mark on its product
  • Bullet will be reduced in size before it exits the gun
  • Bullet will be made to spin and have a true and accurate course on leaving the barrel (correct)
  • Bullet moving through will have unique striations

    • What is the likelihood of detecting GSR on swabs taken from living subjects more than six hours after a firing has occurred?

  • The same as the likelihood of detecting GSR with swabs taken immediately after a firing
  • Not mentioned in the text
  • Higher than the likelihood of detecting GSR with swabs taken immediately after a firing
  • Lower than the likelihood of detecting GSR with swabs taken immediately after a firing (correct)

    • What is the purpose of marking a bullet fired on its base for identification?

    <p>To match it with a specific crime scene</p> Signup and view all the answers

    What should be done before shipping a weapon to the crime laboratory?

    <p>Unloading the weapon</p> Signup and view all the answers

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