video assignment 7

This assignment will have you explore a case and an investigative tool involving firearms related evidence. The case is a forensic files case. While watching this case, answer the following questions:

1 – Provide a brief (one paragraph) summary of the crime that occurred.

2 – Describe the significance of “lands and grooves” with respect to firearms and their value as evidence.

3 – Describe why the initial tests of the firearm that was stolen in the robbery did not link the firearm to the murder.

4 – What was done to the barrel of the firearm to change its rifling characteristics?

5 – How did the forensic examiner overcome the alterations that were done to the firearm to finally solve the murder (what substance was used)?

https://www.youtube.com/watch?v=2rwrKVf_KOI

https://www.youtube.com/watch?v=1I6H9hO42jU

This second video clip relates to the NIBN database. While watching the short video clip, answer these questions:

1 – What was the key break in the case involving the murder of the young mother and the two small children?

2 – Explain what is meant by “NIBN” and how it can be used to support investigations.

https://www.youtube.com/watch?v=9FLqFlL_QgQ

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