Rome Statute of the International Criminal Court 4. Subject to the provisions of paragraph 3 (a) and (b), execution of the decision or sentence shall be suspended during the period allowed for appeal and for the duration of the appeal proceedings. Article 82 Appeal against other decisions 1. Either party may appeal any of the following decisions in accordance with the Rules of Procedure and Evidence: (a) A decision with respect to jurisdiction or admissibility; (b) A decision granting or denying release of the person being investigated or prosecuted; (c) A decision of the Pre-Trial Chamber to act on its own initiative under article 56, paragraph 3; (d) A decision that involves an issue that would significantly affect the fair and expeditious conduct of the proceedings or the outcome of the trial, and for which, in the opinion of the Pre-Trial or Trial Chamber, an immediate resolution by the Appeals Chamber may materially advance the proceedings. 2. A decision of the Pre-Trial Chamber under article 57, paragraph 3 (d), may be appealed against by the State concerned or by the Prosecutor, with the leave of the Pre-Trial Chamber. The appeal shall be heard on an expedited basis. 3. An appeal shall not of itself have suspensive effect unless the Appeals Chamber so orders, upon request, in accordance with the Rules of Procedure and Evidence. 4. A legal representative of the victims, the convicted person or a bona fide owner of property adversely affected by an order under article 75 may appeal against the order for reparations, as provided in the Rules of Procedure and Evidence. Article 83 Proceedings on appeal 1. For the purposes of proceedings under article 81 and this article, the Appeals Chamber shall have all the powers of the Trial Chamber. 2. If the Appeals Chamber finds that the proceedings appealed from were unfair in a way that affected the reliability of the decision or sentence, or that the decision or sentence appealed from was materially affected by error of fact or law or procedural error, it may: (a) Reverse or amend the decision or sentence; or (b) Order a new trial before a different Trial Chamber. For these purposes, the Appeals Chamber may remand a factual issue to the original Trial Chamber for it to determine the issue and to report back accordingly, or may itself call evidence to determine the issue. When the decision or sentence has been appealed only by the person convicted, or the Prosecutor on that person's behalf, it cannot be amended to his or her detriment. 3. 52 If in an appeal against sentence the Appeals Chamber finds that the sentence is disproportionate to the crime, it may vary the sentence in accordance with Part 7.