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Questions and Answers
What is the primary function of a cartridge in a firearm?
What is the primary function of a cartridge in a firearm?
- To ignite the propellant and expel the bullet (correct)
- To absorb the recoil of the firearm
- To enhance the accuracy of the firearm's scope
- To provide a stabilizing force for the firearm's barrel
What is the determining factor for classifying a cartridge as either rimfire or centerfire?
What is the determining factor for classifying a cartridge as either rimfire or centerfire?
- The caliber of the bullet
- The location of the firing pin's strike on the cartridge case (correct)
- The size of the cartridge
- The type of gunpowder used
What is the role of the primer powder in a cartridge?
What is the role of the primer powder in a cartridge?
- To ignite the gunpowder (correct)
- To cool the firearm's barrel
- To stabilize the bullet's trajectory
- To propel the bullet out of the firearm
What is the purpose of loading the entire cartridge into a firearm?
What is the purpose of loading the entire cartridge into a firearm?
What is the relationship between the cartridge and the firearm's firing pin?
What is the relationship between the cartridge and the firearm's firing pin?
Why is it essential to dry bloody clothing before packaging?
Why is it essential to dry bloody clothing before packaging?
What is the primary purpose of using individual evidence labels?
What is the primary purpose of using individual evidence labels?
Why are firearms typically packaged in a cardboard box?
Why are firearms typically packaged in a cardboard box?
What is the primary advantage of recording all evidence in a log?
What is the primary advantage of recording all evidence in a log?
Why are paper bags preferred for packaging bloody clothing?
Why are paper bags preferred for packaging bloody clothing?
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Study Notes
Cartridges
- A cartridge is a metallic casing that contains a bullet, primer powder, and gunpowder.
- The entire cartridge, including the unspent bullet, is loaded into firearms.
Classification of Cartridges
- Cartridges are classified as either rimfire or centerfire.
- The classification depends on where the firearm's firing pin strikes the outside of the cartridge case.
- Rimfire cartridges are struck along the rim, while centerfire cartridges are struck in the center.
Handling and Preserving Evidence
- All evidence is recorded in the evidence log.
- Evidence is labeled with individual evidence labels to ensure a proper chain of custody.
- Bloody clothing should be dried first before packaging.
- Bloody clothing is packaged in a paper bag.
- Firearms are packaged in a cardboard box or bagged.
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