Forensic Investigation

Forensic Investigation



Directions: Please answer each of the following questions and ensure that each response is at least 350 words to answer each question.  Please use proper APA formatting, double-space and cite any sources used.


Chapter 12 Essay Questions:



1.   What is a flow pattern? What should one surmise if a flow found on an object or body does not appear consistent with the direction of gravity?





2.   How can pools of blood aid in reconstructing a crime scene?



3.   Explain how the shape of stains in a trail pattern can help investigators determine the direction and speed at which a person was moving.



4.   Name and describe two methods for documenting bloodstain patterns.



Chapter 13 Essay Questions:




1.   Describe the proper collection and preservation of paint evidence from an automobile suspected of being involved in a hit-and-run incident. Paint that is foreign to the suspect automobile is observed on the hood.




Chapter 14 Essay Questions:



1.   Discuss the proper collection of evidence at the origin of a fire that is suspected of being initiated by gasoline. Describe the proper submission of controls for laboratory examination.




Chapter 16 Essay Questions:




1.   What phenomenon underlies many of the new chemical techniques used to visualize latent fingerprints? Why is this phenomenon so valuable in fingerprint visualization?



2.   When should a fingerprint be “lifted” from a crime scene? Describe how to lift and preserve a fingerprint using adhesive tape.




3.   What is digital imaging and how is it used in fingerprint analysis? What is the greatest limitation to digital imaging?




Chapter 17 Essay Questions:


1.   What techniques does an investigator use to analyze tool marks that cannot be removed from a crime scene? What is the disadvantage of this technique?




2.   What is the first thing the investigator does before handling or moving any impression at a crime scene? Why is this considered merely a backup or precautionary procedure?



3.   What kinds of impression evidence might a forensic odontologist be asked to analyze? How might this help identify a suspect?



Chapter 18 Essay Questions:




1.   Describe two methods used to recover writing from charred documents.



2.   Describe two methods used to read indented writing.



3.   From what substances are most commercial inks made? What technique is used to compare inks? What characteristic provides points of comparison between different inks?