Washington state’s medicinal marijuana law is dopey. It is legal to have a certain amount of pot with a doctor’s prescription, but the police might bust you for obtaining or dispensing it. Voters approved the law in 1998, but the state Legislature has done very little to make it workable. It isn’t hard, but if lawmakers are truly flummoxed, they could look to their New Jersey counterparts, who on Monday passed a medical marijuana law that includes a framework for implementation.