13 Questions
What is a common feature of semi-automatic pistols?
Removable magazine
Which type of handgun has several firing chambers within a revolving cylinder?
Revolver
In firearms, what is the purpose of rifling twist direction?
To impart unique characteristics to the bullet
What is the main function of the primer in a firearm?
To create a spark
What do striations represent in firearm examination?
Minute scratches from metal on metal contact
What technology is used for gunshot residue distance determination?
Griess test for lead detection
Which feature distinguishes single action from double action firearms?
"Pulling the trigger performs two tasks"
What distinguishes shotguns from rifles?
"Contain numerous ball-shaped projectiles"
"National Integrated Ballistic Information Network (NIBIN)" primarily aids in:
"Imaging bullets and cartridge cases"
What did Dr. Calvin Hooker Goddard adapt for simultaneous examinations?
Comparison microscope
Which of the following is NOT a function of the Firearms Section?
Fingerprint analysis
What is the primary difference between impressed and striated toolmarks?
Impressed toolmarks are caused by force and motion applied perpendicular to the plane, while striated toolmarks are caused by force and motion applied parallel to the plane.
What is the validity of gunpowder residue detection according to the text?
Questionable validity and reliability
Learn about firearms, toolmarks, and other impressions in forensic science. Explore the work of Dr. Calvin Hooker Goddard, the father of modern firearms identification, and the use of comparison microscopes for examinations. Dive into firearm functionality, ammunition component comparison, serial number restoration, and distance determination in shooting incidents.
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