Hunter Biden has been convicted of all three felony charges related to the purchase of a revolver in 2018 when, prosecutors argued, the president’s son lied on a mandatory gun-purchase form by saying he was not illegally using or addicted to drugs.
27 CFR § 478.11 addresses that. The court is not making new law here.
Such use is not limited to the use of drugs on a particular day, or within a matter of days or weeks before, but rather that the unlawful use has occurred recently enough to indicate that the individual is actively engaged in such conduct. A person may be an unlawful current user of a controlled substance even though the substance is not being used at the precise time the person seeks to acquire a firearm or receives or possesses a firearm.
27 CFR § 478.11 addresses that. The court is not making new law here.