MEXICO CITY — The judicial landscape in Mexico is facing a significant escalation as the disciplinary proceedings against a Colima judge, initiated by the presidency, have shifted into the realm of criminal prosecution. Sergio Alberto Sigales Obrador Garrido, the judge in question, faces a criminal case for alleged irregularities in his judicial conduct, marking a move from administrative discipline to criminal liability.
The process follows a series of actions by the newly established Tribunal de Disciplina Judicial (TDJ). The tribunal recently moved to suspend the judge’s functions and is now considering a proposal for his permanent removal and disqualification.
Background of the Allegations
The disciplinary action against Judge Sigales was triggered by reports from the Secretariat of the Navy (Semar), which reached the presidency of Claudia Sheinbaum. The allegations center on his alleged irregular intervention in several cases, where he reportedly reduced sentences for five individuals accused of crimes including drug possession and illegal weapons carrying.
While a direct link between these specific cases and the formal criminal investigation has not been fully confirmed, the Criminal Investigation Agency (FGR) has opened a formal criminal case (Cause 104/2026) regarding the judge’s conduct.
A Growing Pattern of Judicial Prosecution
The situation reflects a broader trend in Mexico where the judiciary is increasingly coming under scrutiny from the executive branch. International observers have noted a systematic pattern of “judicial harassment.”
Margaret Satterthwaite, a special rapporteur for the United Nations (UN) on the independence of magistrates and lawyers, previously warned the Mexican government about the “misuse of government channels to stigmatize justice operators.” She noted that public denouncements in government press conferences—often framed as “judges favoring criminals”—frequently lead to administrative complaints and subsequent criminal investigations.
International Legal Challenges
Facing a lack of domestic legal recourse, Judge Sigales’ legal team has turned to international human rights bodies. They are currently seeking support from the Inter-American Commission on Human Rights (IACHR) and the UN to denounce violations of judicial independence.
Legal experts warn that the new legal framework in Mexico, which declares the decisions of the Tribunal de Disciplina Judicial as “definitive and unappealable,” effectively closes the door to domestic judicial review. This leaves international bodies as the primary venue for challenging the legality of these actions.
The initial hearing for the criminal case is scheduled for December 14, 2026, at the Federal Criminal Justice Center in Colima.