I don't believe this to be a necessary truth. Do you have any high quality studies that PCP, itself as a substance, does indeed raise the probability of someone

I don't believe this to be a necessary truth. Do you have any high quality studies that PCP, itself as a substance, does indeed raise the probability of someone doing something untoward? Might it not, in fact, be a problem with the people using PCP? In which case, why should it be restricted for people who would not become a nuisance? Further, why should people who do not become a problem on it have their rights taken away for the simple fact of imbibing?