Consider, for instance, where the 10-gram threshold falls in the typical small-time pot-buying scenario. Your friendly neighborhood dealer typically sells in fractions-of-an-ounce increments. If you're caught holding an eighth-ounce bag, which weighs about 3.5 grams, or a quarter-ounce bag, you're just facing a civil fine. If you're a first-time offender who is 21 or older, you'll be on the hook for $100, and second and third offenses will up the ante to $250 and $500, respectively, while drug treatment may be ordered if you're under 21 or a third-timer. But if you buy a half-ounce bag, which weighs more than the 10-gram threshold, and a cop catches you with it, you're looking at the same old misdemeanor criminal charge, carrying maximum penalties of a year in jail and a $1,000 fine.