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Mexico's Supreme Court Bars Review of Final Rulings by Its Extinct Chambers

The justices affirmed res judicata to preserve legal certainty and deferred any decision on exceptional reopening of cases for alleged procedural fraud.

Overview

  • The Plenary unanimously held that sentences issued by the former Salas and by the Court’s Plenary are final and not subject to recurso de revisión.
  • A dispute erupted over paragraph 52 referencing “cosa juzgada fraudulenta”; seven ministers opposed it, and Lenia Batres will draft the final opinion noting their objections.
  • The ruling undercuts the FGR’s attempt to challenge the First Chamber’s June 11, 2025 amparo that ordered the release of Juana Hilda González after 19 years in prison.
  • Separately, Minister María Estela Ríos withdrew her eviction-related project for Mexico City as activists blocked access to the Court, and related items, including on asset seizures without a judicial order, were postponed.
  • The broader question of how to handle claims of fraudulent res judicata remains unresolved and is expected to be addressed in a future project under Minister Loretta Ortiz.