| Question | Answer |
| Identification or Comparison?
The DNA matched the victim. | Comparison |
| Identification or Comparison?
The green slime was algae. | Identification |
| Identification or Comparison?
The fingerprints at the crime scene were NOT the suspect’s. | Comparison |
| Individual or Class?
Fingerprints | Individual |
| Individual or Class?
Cut hair | Class |
| This database contains information about fingerprints. | IAFIS |
| This database contains information about DNA. | CODIS |
| Individual or Class?
Striations on a bullet | Individual |
| Individual or Class?
White house paint | Class |
| This database contains information about firearms and ballistics. | NIBIN/IBIS |
| This database contains information about paint. | PDQ |
| This database contains information about shoe prints. | SICAR |
| Define Locard’s Exchange Principle | This principle states that when a criminal comes in contact with an object or person, a transfer of evidence occurs. |
| Define Physical evidence | Any object or material that is relevant in a crime (also called trace evidence) |
| Three traits each have a probability of 33%.
What is the probability of having all three? | 3.6% |
| Give two examples of Locard's Exchange Principle | Defendant's fingerprints on a cup of glass; carpet fiber found on victim's sock. |
| Define comparison | A comparison analysis subjects a suspect’s and standard/reference specimen to the same tests and examinations for the ultimate purpose of determining whether or not they have a common origin. |
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