some questions

[Chaos]

alright...first off...im 16 on probabtion in a small town....when we take piss tests....we have to pee in this cup then theres a lid that says if theres weed...coke....and someone else....

if i get a friend to piss for me....does it matter how old it is...what degree it is...what kinda stuff does it look for?

thanks much!