Synopsis As Introduced Amends the Juvenile Court Act of 1987. Provides that a person detained in the Department of Juvenile Justice may institute a post-conviction appeal if in the proceedings which resulted in his or her conviction there was a substantial denial of his or her rights under the Constitution of the United States or of the State of Illinois or both; or there is newly discovered evidence not available to the person at the time of the proceeding that resulted in his or her conviction that establishes a substantial basis to believe that the defendant is actually innocent by clear and convincing evidence. Provides that this proceeding may be commenced within a reasonable period of time after the person's adjudication. Provides that only one petition may be filed by a petitioner under this provision without leave of the court. Makes other changes.