bell work: 4/22/10 find the 9 differences between the two pictures. source:
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Bell Work: 4/22/10Find the 9 differences between the two
pictures.
Source: http://www.smart-kit.com/wp-content/uploads/2007/03/class800px9.jpg
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The answers are …
Source: http://www.smart-kit.com/wp-content/uploads/2007/03/class800px9.jpg
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What do you know about Forensic Science or Crime Scene Investigations?
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Forensic Science Topics
• Crime scenes• Fingerprints• Hairs & fibers• Blood Analysis• Handwriting, Forgery, & Chromatography
• Writing an Investigation Report
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Crime Scenes
As investigators, what would you find at a crime scene?
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What evidence would you collect?
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How are fingerprints important to a crime scene and how are they collected?
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Can you identify the difference in each fingerprint pattern.
Right Hand
Left Hand
Left Hand
Right Hand
Right Hand
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How are hairs important to a crime scene?
How are fibers important to a crime scene?
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Hairs & FibersWhen observing hairs and fibers under a microscope it is important to do the following:– Create a detailed drawing of the specimen as seen under the microscope.
– Incorporate color into your drawing.– Label your drawing (parts of the hair for example and name of animal it came from)
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Source: http://www.smart-kit.com/wp-content/uploads/2007/12/hall1.jpg
Bell Work: 4/23/10
Find the 9 differences between the two pictures.
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The answers are …
Source: http://www.smart-kit.com/wp-content/uploads/2007/12/hall1.jpg
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• Why is blood collected at a crime scene?
• How is the blood from a crime scene tested?
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Blood AnalysisMethods for Detecting Bloodstains:• Visual, White Light• Kastle-Meyer Test• Luminol Reagent Test• Human Precipitin Test
Analyzing procedures & results for blood type:
You will use an antiserum to test for different blood types.
An antiserum is a serum containing antibodies. Obtained from an animal that has been exposed to antigen. Used in the prevention, treatment or diagnosis of infectious disease.
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• How do forensic scientist determine who wrote a note at a crime scene or if it was forgery?
• How and why is chromatography used to solve a crime?
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• Chromatography can be used to separate the components of inks and dyes, such as those found in pens & markers.
• How can this be an important process for forensic scientists?
Pencil
Filter Paper
InkMark
Tape – Label with marker
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• After each piece of evidence you collect, you must write a debriefing, or written summary, of the test results, observations you made, or eyewitness testimonies.
• BE SPECIFIC!!! LOTS OF DETAILS!!!• At the end of the investigation, you will write a final report that summarizes the ENTIRE investigation.
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Forensic Science Timeline• Day 1 (4/21): Online Investigations • Day 2 (4/22): Forensic Discussion• Day 3-7(4/23-4/29): Forensic Research• Day 8 (4/30): Crime Scene Detective: Theft • Day 9-11 (5/3-5/5): Forensic Research• Day 12 (5/6): Online Investigations• Day 13 (5/7): Wrap up Forensic Research & Online
Investigations• Day 14-17 (5/10-5/13): The Case of Lois McArthur• Day 18 (5/14): Crime Scene Detective: Theft• Day 19 & 20 (5/17-5/18): Online Investigations