In Charlton v. Kelly, 229 U.S. 447, 33 S. Ct. 945, 57 L. Ed. 1274 (1913), the Supreme Court noted that "impressive evidence of the insanity of the accused" had been excluded at an extradition proceeding. The Court concluded habeas relief was not warranted, however, stating: "If the evidence was only for the purpose of showing present insanity by reason of which the accused was not capable of defending the charge of crime, it is an objection which should be taken before or at the time of his trial for the crime, and heard by the court having jurisdiction of the crime."