If any persons shall be in the custody of the sheriff of the county for which such designation shall have been made, subsequent to such designation, and shall be entitled, according to law, to the liberties of the jail thereof, they shall be admitted to the liberties of such jail, in the same manner, and in the same cases, as if no such designation had been made, but may be removed by such sheriff to the jail so designated, and confined therein, in the same cases and in the same manner, as such sheriff might by law confine them in the jail of his own county.