Having a small amount of weed might not even get you a fine. Some towns in Massachusetts are giving up on enforcing the law that decriminalized possession of less than an ounce of marijuana. Under that law, an ounce or less brings just a 100-dollar fine – instead of six months in jail or a 500-dollar fine. But offenders don’t have to identify themselves, and there’s no penalty for unpaid fines. Police officials say that makes it hard to enforce – and leaves some towns simply turning a blind eye to pot use.