List two similarities between a crime investigation and the scientific method.
2. List three components that should be included in a crime scene diagram.
3. Explain one reason why keeping an accurate and updated chain of custody for any piece of evidence collected at a crime scene is important.
EXERCISE 1: COLLECTING AND PROCESSING EVIDENCE
Post-Lab Questions
4. How many times was custody of the evidence transferred?
5. You put on a pair of gloves to collect evidence. List two additional pieces of personal protective equipment (PPE) a CSI should wear while collecting evidence at a crime scene. Explain the reason for wearing each PPE listed.
6. You used gloves to collect the sock. List one additional tool that would help prevent possible contamination of the sock.
7. You used a plastic bag as a container for the sock. Is there a better container choice for collecting a piece of evidence such as the sock? If so, what and why? If not, why?
8. Use the crime scene scenario to list three additional pieces of evidence that would most likely be present at the crime scene.
9. What would be the best method for collecting each piece of evidence listed in Post-Lab Question 5?
10. Why should evidence bags be resealed and initialed every time they are opened?
11. Why is it important to reduce the number of times the custody of evidence is transferred?
EXERCISE 2: CRIME SCENE DOCUMENTATION
Post-Lab Questions
12. Why were letters assigned to the tree and light pole while the sock was assigned a number?
13. List two obstacles an outdoor crime scene would pose that an indoor crime scene would not.
14. What information does the sketch provide that a photograph cannot?
15. After photographs have been taken and the sketch completed, what is your next step as a CSI?
EXERCISE 3: VIRTUAL MICROSCOPE
Post-Lab Questions
16. What is the first step normally taken when you look through the ocular lenses?
17. What does it mean that the image is inverted when you look through the ocular lenses?
18. What is the difference between the coarse adjustment knob and the fine adjustment knob? When is it appropriate to use them?
19. What new details are you able to see on the slide when the magnification is increased to 10x that you could not see at 4x? What about 40x?
