Alvaro Barrera Leon, a Cuban national, was detained by ICE on November 13, 2025, after appearing for a scheduled check-in appointment despite having complied with all supervision requirements and having no criminal history. The petitioner filed a habeas corpus petition challenging the legality of his detention under the Due Process Clause. The U.S. District Court for the Southern District of Texas granted the writ of habeas corpus, finding the petitioner's detention violated constitutional protections.