A federal judge in Oklahoma ruled last week that the federal law barring people who use cannabis from owning firearms is unconstitutional, the Associated Press reports. Lawyers for Jared Michael Harrison argued that his Second Amendment rights were violated by the federal law that outlaws “unlawful users or addicts of controlled substances” to possess firearms and U.S. District Judge Patrick Wyrick in Oklahoma City agreed, ruling that federal prosecutors’ arguments that Harrison’s cannabis use “justifies stripping him of his fundamental right to possess a firearm … is not a constitutionally permissible means of disarming Harrison.”