Reconstruction of the crime is done O at the crime scene as soon as possible
O by all the first responders
O using only physical evidence
O using the collected facts and suggestions coming from work done both at the scene and in the lab

answer:

"it is often classified as either a schedule ii or schedule iii substance, making it illegal to possess for personal use or distribution. crystal meth can be ingested, injected, or smoked. it is a highly addictive substance and can lead to many different personal, medical, and legal problems."

this is the link

hope your friend dont get in trouble