Dixon v. United States

Dixon (defendant) admitted she knowingly lied about her address and felony-indictment status to purchase firearms and knew doing so was a crime, but raised duress as a defense, claiming her boyfriend threatened to kill her or harm her children if she didn't acquire the guns; the trial court required Dixon to prove duress by a preponderance of the evidence, the court of appeals affirmed her resulting convictions, and Dixon argued on appeal that once duress is raised, the government must instead disprove it beyond a reasonable doubt.