5th Cir.

United States v. Rivera

May 19, 2026 ·26-50164 ·Per Curiam · By James Taylor

The United States Court of Appeals for the Fifth Circuit dismissed an appeal filed by Sergio Rivera because it was submitted after the deadline. The court held that the time limits for filing the notice of appeal are mandatory claims-processing rules that require dismissal when missed.

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Background

Sergio Rivera was indicted on three counts of production of child pornography and one count of coercion and enticement of a minor. Acting pro se, Rivera appealed the district court’s denial of his motion to revoke a magistrate judge’s order of pretrial detention. The government moved to dismiss the appeal as untimely.

The court’s reasoning

The court determined that Rivera’s notice of appeal was filed outside the applicable fourteen-day time limit set by Federal Rule of Appellate Procedure four. Citing precedent, the court noted that these time limits are mandatory claims-processing rules. Because the government sought to enforce these limits, the court found its duty to dismiss the appeal was mandatory.

What it means going forward

The dismissal prevents the appellate court from reviewing the merits of Rivera’s challenge to his pretrial detention order.

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