What's the point of arresting & imprisoning pot smokers?

[mopaul]

and what's the point of arresting and imprisoning someone who has a few joints on him? or someone with a quarter of a pound of the stuff on him? or someone who sells it to her friends? or someone who buys it by the pound? or growing it for your self, or to sell at a profit? or lighting one up at the bar with your drunken friends? or smoking a bowl at night over a good book and a shot of brandy? or having a few puffs for breakfast lunch and dinner? or a little taste of bud to lighten the burden of chemo? or to beat back old man depression? or just because it fucking feels good to smoke one with your loved one before bedtime and it aint' hurtin' nobody?