The text of the statute refers to someone who is “an unlawful user of or addicted to a controlled substance,” so alcohol wouldn’t count. You’re asked on the form to attest that you are not either a current user or addict, so I don’t think past use applies either. You just can’t both own a gun and do illegal drugs simultaneously, which I guess they think they can prove Hunter did. It’s one of those stupid laws that can be enacted selectively to add charges and put people in prison for longer.