Effects of Meth
Meth does a lot of damage to people who use it. (As a matter of fact, death may not be the worst of its potential effects.) And you can find out about that type of thing in symptoms, and detecting a user with masks.
But users aren't the only ones who are affected it effects family, neighbors and those that effected by the crime that arises from meth use.
Meth labs regularly blow up in ordinary neighborhoods, damaging ordinary people who may not even know what meth is.
And then there's meth-related crime. Its victims aren't limited to users of meth either.
The truth is you don't necessarily have to be involved with meth to feel its effects.