Final answer:
Investigators use specific packaging methods to protect and preserve different types of evidence, including small items like hair, dangerous sharp items, wet items, evidence that could degrade, and arson evidence.
Step-by-step explanation:
How do investigators package really small items, like hair?
Investigators use small sealed containers, such as paper druggist's folds or plastic evidence envelopes, to package small items like hair. These containers ensure that the evidence remains protected and uncontaminated during transportation and storage.
How do investigators package dangerous sharp items?
Investigators use specialized containers, such as puncture-resistant biohazard bags or rigid evidence boxes, to package dangerous sharp items. These containers are designed to prevent injuries and safely contain the items without compromising the evidence.
What must be done with wet items?
Wet items should be dried before packaging to prevent the growth of mold and other potential damage. Investigators may use blotting paper, air drying, or other appropriate methods depending on the nature of the wet item.
What should be done with evidence that could degrade?
Evidence that could degrade, such as DNA samples or perishable substances, should be stored and preserved according to specific protocols. This may involve refrigeration, freezing, or other preservation techniques to maintain the integrity of the evidence.
How is arson evidence dealt with and why?
Arson evidence is carefully collected and packaged to preserve its integrity. Investigators may use airtight containers to prevent the loss of volatile substances and ensure that the evidence remains uncontaminated. Proper handling of arson evidence is crucial to accurately determining the cause of the fire and identifying potential suspects.
Learn more about Investigative methods and preservation of evidence