The complication existed because even after the use of the weed became legal in January, sellers are still held to be violating federal law. Now, however, the Colorado Supreme Court has made a new rule which assures lawyers that they will not be penalised for assisting such clients. Under the new rules, as quoted by The Denver Post, a lawyer ‘may assist a client in conduct that the lawyer reasonably believes is permitted by these constitutional provisions and the statutes, regulations, orders, and other state and local provisions implementing them’. Source: Washington Post