12. Confinement ends, with no further formality,1° as soon as a certificate attesting that confinement is no longer justified has been issued by the attending physician or a specialized nurse practitioner;
2° on the expiry of a time limit prescribed by section 10, if no psychiatric examination report has been produced by that time;
3° on the expiry of the time fixed in the judgment ordering confinement;
4° upon a decision to that effect by the Administrative Tribunal of Québec or a court of justice.