If from the examination before the judge it appears that the person held pursuant to either of the two preceding sections is the person charged with having committed the crime alleged and, except in cases arising under § 19.2-91, that he has fled from justice, the judge shall, by a warrant reciting the accusation, commit him to jail for such a time, not exceeding thirty days, specified in the warrant as will enable the arrest of the accused to be made under a warrant of the Governor on a requisition of the executive authority of the state having jurisdiction of the offense, unless the accused give bail as provided in the next section, or until he shall be legally discharged.