VII.
Article 67
Any person arrested by reason of suspicion of criminal conduct shall be brought before a judge without undue delay. If he is not released at once, the judge shall, within 24 hours, issue a reasoned decision on whether he shall be detained on remand. Detention on remand may only be ordered due to a charge subject to heavier sanctions than fines or punitive custody. The right of a person detained on remand to refer the decision on his remand to a superior court shall be guaranteed by law. A person shall never be detained on remand for longer than necessary ; if the judge deems that he may be released on bail the amount of bail shall be determined by a judicial order.
Rights during investigation - arbitrary arrest or detention and deprivation of liberty
EDIT.