Answer: They do it because it might look like cocaine or LSD but that doesn't mean it actually is
Explanation:The prosecution must prove that a seized substance is indeed the illicit drug it claims it is by sending the evidence to a crime lab for analysis. The crime lab analyst then must testify at trial in order for the prosecution to make its case.
A.
Some conditions that might have led Samuel's decision to commit a crime could've been students picking him, making fun of him, bullying him. Anything that had to do with other students acting negative to Samuel is what I think is the reason Samuel made this decision.
B.
There's a bunch of things that could've been done to help Samuel. Such as discussing the issue to his parents or sibling, telling the principal what the problem was, etc. Samuel would just need someone to talk to about what was going on, this would probably help him. <em>"Were there signs at school or home that he was at risk? </em><em>I don't understand what this means sorry.</em>
C.
There are barely any at my previous school that I used to attend. Some additional measures that would need to be added would be weapon, drug, etc., detected doors, staff members checking students' bags, etc.