Evidence teachers require to recreate the CSI at school
Evidence 1
Fingerprints on a can
Take a can of soda and clean it. Deposit fingerprints on the can´s surface and leave it at the crime scene.
Students will use the techniques described in the "Laboratory" section to reveal the fingerprints and compare them to the suspect's which are available in the "Fingerprints and DNA Registration" section.
Evidence 2
Plastic watch strap
A piece of a watch strap or plastic bracelet is left at the crime scene.
Students will use the techniques described in the "Laboratory" section to calculate the density and compare it to the densities of different plastics, as well as to the other part of the strap that has been seized from the search conducted on the suspect.
A piece of cloth is deposited at the crime scene.
Students must collect it and determine the composition its composition using the fiber analysis techniques described in the "Laboratory" section. Using various fibers of known composition, by comparison they should identify the composition of the cloth collected at the crime scene.
Evidence 5
Fingerprints on a window
The fingerprints from various fingers belonging to the same person should be pressed onto a window at the crime scene.
Using the techniques described in the "Laboratory" section, students will be able to reveal the fingerprints and then compare them to the suspect's which is available in the "Fingerprints and DNA Registration" section.
Evidence 6 & 7
shoe prints and soil
Deposit 100 grams of soil on the floor at the crime scene and step on it with a boot to leave a shoe print. Students should take a photograph of the shoe print and compare it to the sole of the suspect's boot.
Students must collect the soil and analyze it using the techniques described in the "Laboratory" section. Each different soil sample represents a possible entry point at the scene of the crime. They should be labelled 1 to 5 and correspond to 5 points on a map of the crime scene. Students compare them and conclude from where the suspect entered the scene of the crime.
Evidence 8
Hairs
Deposit one or two hairs at the crime scene so that students can collect and analyze them in the laboratory following the techniques described in the "Laboratory" section. They should also compare the genetic profile of the hair which can be consulted here and compare them to those registered in the police database which is available in the "Fingerprints and DNA Registration" section.
Evidence 9
Drops of synthetic blood
Drops of blood.
Students detect the presence of drops of blood using luminol following the procedure described in the "Laboratoy" section. Once detected, they collect the evidence with a swab and place it in a test tube. They then compare the DNA of the blood, which can be consulted here, to that of the DNA registered in the police database which is available in the "Fingerprints and DNA Registration" section.
