Question

Adult flies caught at the scene need to be properly stored to send to the lab. This involves

a) Keeping them in open containers to preserve natural conditions.
b) Storing them in airtight bags to prevent decomposition.
c) Placing them in the sun to accelerate decomposition for analysis.
d) Using preservatives and storing them in a cool, dry place.

Answer 1

Adult flies caught at crime or investigation scenes should be preserved using preservatives and stored in cool, dry conditions to halt decay and maintain specimen integrity for forensic analysis.

Step-by-step explanation:

Adult flies caught at the scene should be stored by using preservatives and keeping them in a cool, dry place. This method is crucial because flies are attracted to decomposing organic matter, where they typically lay their eggs. To prevent further decomposition and to maintain the integrity of the specimens for a forensic analysis, it's important to halt the decay process.

Handling the flies correctly allows a forensic entomologist to determine the time of death based on the development stages of the maggots found. Additionally, Francesco Redi's experiment, which prevented flies from contacting meat with gauze and airtight seals, reinforces the concept that fly larvae come from eggs laid by adult flies, not through spontaneous generation.