In every single marijuana thread, I find myself refuting this statement.
Honestly, the money wasted on prosecuting and imprisoning marijuana offenders is almost infantesimal in the grand scheme of criminal justice budgets.
My husband works in a prison which houses over 2,500 inmates. Less than five are in there for marijuana posession, and these were fellows who were caught with vast amounts of the stuff: in no way arguably “personal use.”
The problem with studies that cite people in prison for “posession” is that they don’t differentiate between the stereotypical “kid with a joint in his pocket” and the guy who had a Ryder truck packed full of weed.
You’ll get no arguments from me that even a single person in prison for a marijuana related offense is too many-- I’m an advocate of decriminalization-- but the reality is that very, very few people go to prison, or even to jail for posessing small amounts of pot. In my state, IIRC, you have to be caught with five hundred grams before it’s even jail is even a possiblilty in sentancing.
Nor am I saying that miscarriages of justice don’t happen. Overzealous prosecutors and judges trying to make political statements can ruin lives, but it’s simply not as common as some advocates of decriminalization would have you believe.