im supprised no one mentioned the key part of the term chronic>>>
the fact that chronic was the old school term for herb mixed with coke
now-a-days its less likely that there will actually be anything other than good weed in a bag o chronic, but its fair game if there is so be aware.
if it is laced youll feel more jittery and hyper senseitive prolly more paranoid but definately higher, lighter, and brighter