Art. 18. Detention shall be exercised only for offenses meriting corporal punishment. The place of detention shall be different and completely separated from that set apart for the serving of sentences.
The Federal and State Governments shall organize in their respective territories the penal system—penal colonies or prisons—on the basis of labor as a means of regeneration. (See Art. 5 and Clauses I and II of Art. 123.)
Art. 19. No detention shall exceed three days except for reasons specified in the formal order of commitment, which shall set forth the offense charged, the substance thereof, the time, place and circumstances of its commission, and the facts disclosed in the preliminary examination; these facts must always be sufficient to establish the corpus delicti and the probable guilt of the accused. All authorities ordering any detention or consenting thereto, as well as all agents, subordinates, wardens or jailers executing the same, shall be liable for any breach of this provision.
The trial shall take place only for the offense or offenses set forth in the formal order of commitment. If it shall develop in the course of trial that another offense different from that charged has been committed, a separate accusation must be brought. This, however, shall not prevent the joinder of both causes of action, if deemed advisable.
