Drugs, Toxicology & Trace Evidence Review
Drugs
1. Describe what a presumptive test is
2. List three different types of presumptive tests
1.
2.
3.
3. Describe what a confirmatory test is
4. List two different types of confirmatory tests
1.
2.
5. List four different types/classifications of drugs
1.
2.
3.
4.
6. What is the difference or differences between illegal and illicit drugs?
7. What is the most abused drug in the US?
8. What does qualitative analysis of a substance tell you?
9. What does quantitative analysis of a substance tell you?
Toxicology
10. Name 6 factors that would affect toxicity of a substance
1.
2.
3.
4.
5.
6.
11. What is a LD50?
12. What does it mean if someone suffered acute exposure to a toxin? What does it mean if
someone suffered chronic exposure to a toxin?
13. If someone ingested a toxin but there was the presence of a chelating agent in the body, how
would that change the effects of the toxin?
14. What does the phrase, “the poison is in the dosage” mean?
15. What are the differences between synergism and antagonism?
Trace evidence
16. What is trace evidence and give some examples.
17. To identify trace evidence from a crime scene, one must first determine the _____________________
properties of the evidence, and then determine the _______________________ properties of the
evidence.
18. Give examples of the two properties.
Labs
19. Spot Test drug lab
a. In the Spot Test drug lab what would the drugs that you tested for be classified as? What
would they be legally classified as?
b. What type of test was the Spot Test lab?
c. Was the data you gathered in this lab qualitative or quantitative? Why?
d. What can this test tell you about an unknown substance, and what can it not tell you about a
substance?
20. Lipstick chromatography and marker chromatography labs
a. What type of test did you perform in these labs?
b. Why are they classified as that type of test?
c. What is the Retention factor (Rf) of the different components in sample used for?