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This activity contains 10 questions.

Question 1.
If bloodstained materials are stored in airtight containers, such as pill bottles, vials or other similar containers, the accumulation of moisture may encourage the growth of mold, which can destroy the evidential value of blood.

End of Question 1

Question 2.
The examination of evidence requires comparison with a "substrate control" to ensure the evidentiary value of the crime-scene evidence.

End of Question 2

Question 3.
Charred debris recovered from the scene of a suspicious fire may be sealed in a plastic evidence container.

End of Question 3

Question 4.
Although there are standardized methods for collection of different types of evidence, an experienced evidence collector must be able to make innovative, on-the-spot decisions at the crime scene.

End of Question 4

Question 5.
The collection of vacuum sweepings, fingernail scrapings, and clothing is not necessary at most crime scenes.

End of Question 5

Question 6.
To avoid contamination of evidence, especially evidence which may contain DNA, evidence collectors must wear disposable latex gloves and sometimes face masks or shoe covers.

End of Question 6

Question 7.
Possible carriers of DNA evidence include stamps and envelopes licked with saliva, a cup or can that has touched a person's lips, chewing gum, the sweat band of a hat, or a bed sheet containing dead skin cells.

End of Question 7

Question 8.
Evidence can never be sent by ground mail; it must be delivered by hand by an authorized carrier.

End of Question 8

Question 9.
The Supreme Court has determined that circumstances under which warrantless searches are permitted include the existence of emergency circumstances, the need to prevent the immediate loss or destruction of evidence, and consent of the closest relative of a suspect.

End of Question 9

Question 10.
Due to the threat of pathogens such as AIDS and hepatitis that are found in bodily fluids, all substances suspected of containing bodily fluids at a crime scene must be handled as if they were proven to be infectious.

End of Question 10

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