Background
An investigating judge ordered [C] [X], who was at least 16 years old, to stand trial before a juvenile assize court on charges of aggravated rape, aggravated sexual assault and violence, and sexual assault. The judge also ruled that the detention warrant issued on June 26, 2025, would remain effective until the accused appeared before the trial court. Both the accused and the prosecution appealed.
On February 4, 2026, the Investigation Chamber of the Aix-en-Provence Court of Appeal ordered that [C] [X] remain in pretrial detention until trial. The accused challenged that ruling on three grounds: that its legal basis disappeared when Article L. 434-9 of the Juvenile Criminal Justice Code was subsequently repealed; that the appellate panel lacked a judge specializing in child protection; and that the panel failed to determine adequately whether continued detention exceeded the degree of severity necessary, particularly in light of his disabilities and medical needs.
The Court’s Holding
The Court of Cassation dismissed the appeal. It held that the Constitutional Council’s June 27, 2025 decision did not permit the accused to challenge a detention order made before Article L. 434-9 was repealed on July 1, 2026. Although the Constitutional Council had declared the provision unconstitutional, it postponed repeal and expressly provided that measures taken before that date could not be challenged on the basis of the identified unconstitutionality. Treating the later repeal as invalidating the earlier detention order would therefore conflict with the binding effect of the Constitutional Council’s decision.
The Court also held that the Investigation Chamber was properly constituted. Under the court’s judicial-assignment order, the most senior counselor served as the child-protection delegate when the specifically designated judges were unavailable, and that counselor sat on the panel in this case.
Finally, the appellate court adequately determined that detention did not exceed the severity necessary under Article L. 334-2. Its findings identified risks of repeated offending and pressure on young, vulnerable victims and witnesses, citing allegations involving several victims over more than three years, repeated sexual conduct, and the denial or minimization of some acts. It also found that return to the mother’s home, judicial supervision, or electronically monitored house arrest would not impose sufficient constraints. The Investigation Chamber was not required to address every detail of the accused’s arguments concerning his health and disabilities.
Key Takeaways
- The delayed repeal of Article L. 434-9 did not retroactively invalidate a juvenile-detention order entered before July 1, 2026, because the Constitutional Council protected earlier measures from challenges based on the provision’s unconstitutionality.
- A court’s designated child-protection judge may include the most senior counselor serving in that role under an applicable judicial-assignment order.
- A detention ruling satisfies the required proportionality review when it gives specific reasons why detention remains necessary and why less restrictive alternatives cannot adequately address the identified risks.
Why It Matters
The decision clarifies the transitional effect of the Constitutional Council’s ruling on detention of juveniles awaiting trial before a juvenile assize court. Courts must conduct a specialized review of whether detention exceeds the severity necessary, but detention measures adopted before the scheduled repeal cannot be attacked merely because the governing provision was declared unconstitutional.
The ruling also shows that French appellate courts need not answer every factual submission individually when their reasons, taken as a whole, demonstrate a concrete assessment of necessity, proportionality, and possible alternatives to detention.