Module 5 Review Questions Forensic Science Essay

720 Words Aug 20th, 2013 3 Pages
Module Five: Text Questions
Review Questions 1. What is the NIBIN?
The NIBIN is a network that provides law enforcement agencies around the world with access to the images and information. 2. What is rifling? What two types of markings does this produce?
A rifling is a given spiral grooves by the manufacturer. This rifling or spiral grooves cut into the barrel of a gun in order to make a bullet spin as it is fired. Rifling produces grooves and lands. 3. What is a distance determination? How is this done?
A distance determination is the process of estimating the distance between where a shot is fired and its target. This is often done by looking at the patterns of powder
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It would be useful to know the distance between a gun fired and its target because if you know the distance you might be able to find more clues as to who did it by looking at where the shooter shoot the victim. 3. If you were in charge of retrieving bullets at a crime scene, what steps would you take to retrieve a bullet and take it to the crime lab?
If I were in charge of retrieving bullets at a crime scene I’d first I would have to find a way to remove the bullet out while preserving any possible markings on the bullet. Then the bullets can be placed into a marked container for identification purposes. Then to transport the bullet to the crime laboratory, I’d wrap the bullet in tissue paper and placed in an envelope or pillbox. I would have to be careful with the handling and packaging of the bullet, because I would have to be careful to preserve any trace evidence that might be present on the bullet. 4. What are some of the challenges in analyzing tool marks?
Some of the challenges in analyzing tool marks is it is difficult to duplicate the marks left by tools through tests in the laboratory and tool marks may not always give individual characteristics. 5. What is the Doppler Effect? How can the Doppler Effect be useful for a forensic investigation involving a shooting?
It is important for a forensic scientist to determine the distance from a gun to a shooter because in some cases a
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