The Appeals Chamber's main role is to review and adjudicate appeals against judgments and decisions made by the Trial Chamber, ensuring the fairness and integrity of the ICC's judicial process.

The Appeals Chamber is composed of five judges, elected by the Assembly of States Parties for a term of nine years, with the possibility of re-election.

The composition of the Appeals Chamber is guided by the principles of fair representation of the world's major legal systems, equal representation of male and female judges, and geographical distribution of judges.

The Appeals Chamber can conduct its proceedings with a quorum of three judges, unless otherwise provided in the ICC's Statute or Rules of Procedure and Evidence.

The Appeals Chamber applies a limited standard of review, focusing on whether there were any errors of law, errors of fact, or procedural irregularities that substantially affected the Trial Chamber's decision.

The Appeals Chamber can confirm, reverse, or modify the Trial Chamber's judgment, or order a retrial.

The time limit for filing an appeal to the Appeals Chamber is generally 30 days from the date of the Trial Chamber's judgment or decision.

The Appeals Chamber can review interlocutory decisions of the Trial Chamber, but only with leave (permission) of the Appeals Chamber.

The Prosecutor has the right to participate in the appeals process before the Appeals Chamber, to represent the prosecution's case, to represent the interests of the victims, and to provide legal assistance to the Appeals Chamber.

The Defense has the right to participate in the appeals process before the Appeals Chamber, to represent the accused person's case, and to provide legal assistance to the Appeals Chamber.

The Appeals Chamber can order the release of a person who has been convicted by the Trial Chamber if the person has served two-thirds of their sentence, if the Appeals Chamber finds that the person's conviction was a miscarriage of justice, or if the Appeals Chamber finds that the person's detention is unlawful.

The Appeals Chamber is superior to the Trial Chamber in the sense that it has the authority to review and adjudicate appeals against the Trial Chamber's judgments and decisions.

The Appeals Chamber can order a retrial if it finds that the Trial Chamber's judgment was based on a miscarriage of justice, if the Trial Chamber committed a serious error of law, or if the Trial Chamber's judgment was not supported by the evidence.

The Appeals Chamber plays a crucial role in ensuring the fairness and integrity of the ICC's judicial process, providing a mechanism for correcting errors made by the Trial Chamber, and contributing to the development of international criminal law.

As of my knowledge cutoff in September 2021, Judge Piotr Hofmański is the current President of the Appeals Chamber.