Answer: Avoid cross-contamination of evidence.
In an investigation scene, evidence collection must follow some set of strict guidelines so as to avoid mix up or mistakes. This is to ensure a smooth and quick investigation.
Cross contamination can happen when some other fibers are mistakenly added to the fibres involved in the investigation. This can be avoided by careful selection of only the fibres at the investigation scene and following all standard procedures involved in the the collection of evidence.
Answer:
It's C
Explanation:
<em>Pay more attention in your classes next time :)</em>
I'm pretty sure one of them is your environment, like people you're surrounded with. I'm not really positive about the other one though. hope this helps!
Your answer will be the letter B
hope this helps!!!!!!!!!!