If from the examination before the local criminal court it appears that the person held is the person charged with having committed the crime alleged, and, except in cases arising under section 570.14 or 570.16, that he has fled from justice, the local criminal court must, by a warrant reciting the accusation, commit him to the county jail for such a time not exceeding thirty days and 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 gives bail as provided in the next section, or until he shall be legally discharged.