Crime Lab Central

This is the place where new and upcoming information will be posted.
     
 
The Crime
Crime Scene Evidence
 

During the week end of February 3-4 someone entered the CAC Tortoise area and kidnapped a tortoise. the missing tortoise is the Greek tortoise number G9. The entire tortoise area was searched for evidence and many possible clues were found. A map of the tortoise area was drawn by a special agent which depicts the exact area in which much of the possible evidence was found. This Map is posted in the CSI Computer Research Lab. The evidence continues to be analized and additional evidence and data will be posted on this site as it is cleared. Investigators should use this page in the following manner.

  1. Crime scene evidence posted in the next column continues to be added.
  2. Summary of the types of evidence typically found in a crime scene and links to further information about that type of evidence.
Footprint Lip-print
Fiber Broken glass
Hand-print Crime scene
Fingerprints

Suspect
Name

213-27
213-28

213-21

 
 

Investigation Time Line

Feb 5-20 laboratory investigations: All laboratory work must be completed by Feb 20 (Periods A +B) or Feb 20 (Periods F,G, H) and Journal must be signed by the Inspector General (teacher).

Feb 21-22 Referal to Prosecutor: Homework due this date is the Laboratory Journal signed by the Inspector General, and an accusation statement completed.
     
     

Evidence Topic
Description why and how evidence is important to crime investigations
Links and
Procedure Instructions
Glass Glass fragments can be used as evidence to help place a suspect at the scene of a crime. Because different kinds of glass have different physical characteristics, types of glass can be distinguished from one another. For example, chips of glass from a broken window may fall into a perpetrator's trouser cuff or shoes. A forensic scientist can identify these chips as part of the broken window. Similarly, parts of a broken headlight found at the scene of a hit-and-run can be used to identify the suspected vehicle.

A procedure for testing density of glass.

 
Hair People typically lose hundreds of hairs a day. These hairs usually fall out as a natural process, but when trama occurs a person can have hair torn out in much greater quantities.

How to examine Hair

Clues from Hair (scroll down a little)

Microscopic Investigation of hair

Crime scene hair analysis

Fabric/fiber Every person who is physically involved in a crime leaves some minute trace of his or her presence, sometime from their hair even sometimes from their clothing.

How to test fiber
Identifying Fibers

Fiber evidence

Fiber testing

Soil  

Testing soil

Soil as evidence Just the soil part!
Handwriting  

Procedure for Ink Chromotography
What is Chromotography
Handwriting Background

 
Foot prints    
Fingerprints  
Lip prints  

Background on Lip Prints

Using Lip prints