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=Forensic Investigation: //On the Trail of a Killer//=

In this activity, your team will recover a fingerprint found at a crime scene. Your team will also determine the blood type of some blood found at the same scene. Each team will collaborate with all others and as a class you will submit your final results. There is a BONUS to the class who is most accurate and lifts the best prints!
 * **Step One** : Examine all known prints taken from the victim and those who were regularly at the scene of the crime (these individuals all have alibis). Identify the subcategory for each print:
 * Victim
 * Roommate
 * Neighbor
 * Best Friend
 * Mother
 * Cleaning Lady
 * **Step Two** : Determine the blood type (to help determine if DNA electrophoresis is needed...if so, appeal to the lead investigator (aka your teacher) for funds ($$$$) to run a DNA fingerprint) of the blood found at the scene.
 * **Step Three** :
 * Complete a practice print: on a clean slide have one team member leave a print (get approval on dusted & lifted print)
 * Dust your print, then determine if your print matches any of the known prints (if so, indicate the match) or determine that your print is not a match (could belong to the perpetrator)
 * Window
 * Lamp found near body
 * Broken glass vase
 * Peephole in front door
 * Broom handle in closet
 * Bathroom door


 * **Step Four** : Collaborate with other teams (compare common tasks & share individual test results with all teams.
 * **Step Five** : As a class, examine the evidence from the Laramie and Tulsa crime scenes, answer the questions from below in a short paragraph.
 * The victim at the Laramie crime scene had which type of print? The victim at the Tulsa crime scene?
 * Do you believe these crimes are linked to the one in St. Louis (cite any evidence).

Targets:


 * 1) Identify the subcategory to which a fingerprint belongs.
 * 2) Lift a fingerprint using dusting powder.
 * 3) Compare a known fingerprint to a fingerprint taken from a crime scene.
 * 4) Determine blood type using stimulated blood.
 * 5) Compare a DNA fingerprint from a crime scene to a known sample.