Background
In the early hours of December 25, 2025, military police officers on routine patrol in Hortolândia, São Paulo state, stopped two men — Gustavo de Oliveira Santos (riding) and Luís Fernando Rocha Borges (passenger) — on an unplated motorcycle at a petrol station. A personal search of Santos produced 80 rocks of crack cocaine; a search of Borges yielded 72 portions of powder cocaine. A records check revealed that the Yamaha MT-03 motorcycle they were riding was the subject of a theft report filed in Campinas on December 12, 2025, and that its identifying markers had been tampered with. Both men admitted they had purchased the bike together for R$5,000 knowing it was stolen, but said nothing about the drugs. They were arrested in flagrante for drug trafficking (Art. 33, caput, Law 11,343/2006) and receiving stolen property (Art. 180, Penal Code).
At the custody hearing, the trial court converted the flagrante arrest into a formal preventive detention order, finding concrete grounds for the periculum libertatis in the public-order guarantee under Art. 312 of the Code of Criminal Procedure (CPP). Subsequent requests to revoke the detention — including one supported by defense-submitted video footage purporting to show that no drugs were found during the roadside search — were denied at every level. The São Paulo state appellate court (TJSP) upheld the detention, and a habeas corpus petition to the STJ was not cognized by a single-justice decision. Santos then filed the present interlocutory appeal (agravo regimental) asking the full Fifth Panel to reverse that decision and either revoke the detention or substitute it with non-custodial measures under Art. 319 CPP.
Santos argued three grounds: (i) the preventive order lacked concrete factual basis for the risk of liberty; (ii) the defense video contradicted the police account of where the drugs were found; and (iii) his favorable personal circumstances — no prior criminal record, lawful employment — made lesser measures sufficient. He did not contest the legality of the search itself, only that the video cast enough doubt on the police version to render the detention unsupported.
The Court’s Holding
The Fifth Panel unanimously denied the appeal, leaving the preventive detention in place. Writing for the court, the reporting minister confirmed that habeas corpus cannot serve as a substitute for an ordinary appeal, and that relief by writ is available only where a manifest illegality is shown — which was not the case here. On the video evidence, the court held that resolving a conflict between audiovisual material and consistent police testimony requires a thorough re-examination of the entire body of evidence, a task incompatible with the narrow scope of habeas corpus review. Courts at both prior levels had noted that the footage’s poor quality prevented any categorical conclusion that the personal search was negative, and that at this stage the consistent, corroborating accounts of both officers must prevail pending a proper evidentiary hearing.
On the merits of the detention, the court found the order fully grounded in Art. 312 CPP. The concrete facts — seizure of significant quantities of crack and cocaine already portioned for distribution, combined with use of a recently stolen motorcycle whose identification had been deliberately altered and which both suspects knowingly purchased as stolen property — demonstrated both the fumus commissi delicti and a concrete periculum libertatis. The panel emphasised that the nature and quantity of the drugs, together with the parallel commission of receiving stolen property, evidenced a pattern of greater criminal culpability and a real risk of reoffending, sufficient to justify detention to guarantee public order.
The court further held that Santos’s favorable personal circumstances — first-time offender, steady employment — were legally irrelevant once the statutory requirements of Art. 312 CPP are met, and that the concrete gravity of the conduct rendered the non-custodial measures listed in Art. 319 CPP insufficient to protect public order. The appeal was denied and the detention upheld.
Key Takeaways
- Habeas corpus at the STJ level is not a substitute for an ordinary appeal; the writ reaches only manifest illegality, and conflicts between defense evidence and police testimony must be resolved through full evidentiary proceedings, not summary habeas review.
- Preventive detention for public-order protection under Art. 312 CPP is adequately justified when grounded in specific, concrete facts — here, the quantity and nature of pre-portioned drugs plus concurrent use of a stolen, tampered vehicle — rather than in the abstract seriousness of the offense.
- Favorable personal circumstances (no prior record, lawful employment) do not bar preventive detention when the statutory prerequisites of Art. 312 CPP are otherwise satisfied.
- Non-custodial measures under Art. 319 CPP may be deemed insufficient where the concrete gravity of the conduct — particularly the combination of drug trafficking and organized property crime — indicates that lesser measures would not adequately safeguard public order.
Why It Matters
This decision reinforces the STJ’s settled doctrine that preventive detention orders are measured against the concrete circumstances of the arrest, not the abstract penalty attached to the charge. By treating the volume and pre-packaged state of the drugs, and the deliberate acquisition of a recently stolen vehicle with altered identification, as independently sufficient concrete indicators of public-order risk, the court signals that trial judges can rely on these factual markers without needing a prior criminal record or evidence of organized-crime membership.
For defense practitioners, the ruling underscores a significant procedural constraint: video or other exculpatory material that conflicts with police testimony cannot be assessed — and will not shift the outcome — in habeas corpus proceedings at the STJ. Such challenges must be preserved for the merits phase in the court of origin, where full evidentiary review is available. The decision also reaffirms that a defendant’s clean record and stable life circumstances, while potentially relevant at sentencing, carry no determinative weight when a judge identifies concrete grounds for pre-trial custody.