7. No one shall be detained for debt. This principle shall not limit the orders of a competent judicial authority issued for nonfulfillment of duties of support. Article 8. Right to a Fair Trial 1. Every person has the right to a hearing, with due guarantees and within a reasonable time, by a competent, independent, and impartial tribunal, previously established by law, in the substantiation of any accusation of a criminal nature made against him or for the determination of his rights and obligations of a civil, labor, fiscal, or any other nature. 2. Every person accused of a criminal offense has the right to be presumed innocent so long as his guilt has not been proven according to law. During the proceedings, every person is entitled, with full equality, to the following minimum guarantees: a. the right of the accused to be assisted without charge by a translator or interpreter, if he does not understand or does not speak the language of the tribunal or court; b. prior notification in detail to the accused of the charges against him; c. adequate time and means for the preparation of his defense; d. the right of the accused to defend himself personally or to be assisted by legal counsel of his own choosing, and to communicate freely and privately with his counsel; e. the inalienable right to be assisted by counsel provided by the state, paid or not as the domestic law provides, if the accused does not defend himself personally or engage his own counsel within the time period established by law; f. the right of the defense to examine witnesses present in the court and to obtain the appearance, as witnesses, of experts or other persons who may throw light on the facts; g. the right not to be compelled to be a witness against himself or to plead guilty; and h. the right to appeal the judgment to a higher court. 3. A confession of guilt by the accused shall be valid only if it is made without coercion of any kind. 4. An accused person acquitted by a nonappealable judgment shall not be subjected to a new trial for the same cause. 5. Criminal proceedings shall be public, except insofar as may be necessary to protect the interests of justice. Article 9. Freedom from Ex Post Facto Laws No one shall be convicted of any act or omission that did not constitute a criminal offense, under the applicable law, at the time it was committed. A heavier penalty shall not be imposed than the one that was applicable at the time the criminal offense was committed. If subsequent to the commission of the offense the law provides for the imposition of a lighter punishment, the guilty person shall benefit therefrom. Article 10. Right to Compensation Every person has the right to be compensated in accordance with the law in the event he has been sentenced by a final judgment through a miscarriage of justice.