When the Judge Judges His Own Case
By Hotspotnews
In any country that claims to take the rule of law seriously, one principle stands above almost all others: no man may be the judge in his own cause. Nemo judex in causa sua. It is not a technicality. It is the foundation that separates a constitutional republic from a system of personal power.
Brazil is currently testing how far that principle can be stretched.
Eduardo Tagliaferro once worked directly under Alexandre de Moraes. He was appointed by Moraes himself to head a specialized unit at the Superior Electoral Court during the period Moraes controlled it. The two men were not distant colleagues. One was the superior; the other was the subordinate. Later, Tagliaferro became the source of internal messages that raised serious questions about how that same court and Moraes’s offices had operated. He has publicly accused Moraes of procedural abuses. Moraes, in turn, is the Supreme Court justice who opened the investigation into the leaks, accepted the formal charges against Tagliaferro, and continues to act as the single most important decision-maker in the criminal case.
Requests that Moraes step aside on grounds of obvious conflict of interest have been filed. They have been rejected. The Court has ruled that the case may proceed under his direction. The same justice who was the hierarchical superior, the alleged interested party, and the target of the public accusations remains the relator.
This is not a minor procedural quirk. It is a direct collision with the most elementary requirement of judicial neutrality. When a judge has previously supervised the defendant, when the evidence at issue concerns the judge’s own official conduct, and when the defendant has openly accused the judge of misconduct, the appearance of impartiality is destroyed. In systems that value institutional legitimacy, that appearance matters as much as the reality. A court that refuses to recognize the problem invites the public to conclude that power, not principle, is the operative rule.
Defenders of the arrangement will say the Supreme Court is collegial, that other justices can review decisions, and that the process has followed internal rules. These answers miss the point. The core function of a trial judge or relator is to shape the case: which evidence is admitted, which motions are granted, how the timeline advances, and what tone is set. When that central figure is the very person whose prior relationship and personal stake are at the heart of the dispute, the structure itself is compromised. Collegial review after the fact cannot fully repair a process that began under a cloud.
A serious country does not ask its citizens to pretend that this arrangement is normal. It does not require them to accept that the same official who once directed the subordinate can now sit in judgment over him without any meaningful risk of bias. And it does not treat repeated objections based on the oldest principle of natural justice as mere technicalities to be dismissed on procedural grounds.
What is at stake is larger than one case or one pair of individuals. Institutions that ignore the appearance of partiality eventually lose the ability to command respect. When the highest court appears to apply one set of rules to its own members and another to everyone else, public confidence erodes. That erosion does not stay confined to a single docket. It spreads.
Brazil faces many challenges. Restoring the basic expectation that judges will not preside over cases in which they have a personal and hierarchical history is not the most complicated of them. It is simply the most fundamental. A republic that cannot enforce this minimum standard is not defending the law. It is testing how much of the law the public is still willing to believe.