Question juridique clé
Whether preventive detention could be maintained on the basis of a serious risk of reoffending despite no prior convictions.
Solution extraite
Yes. The dangerous arson, the psychiatric expertise, and the severe mental disorder established a sufficiently serious risk of further grave offences.
Motifs extraits
The court held that recidivism can justify detention even without antecedents in particularly serious cases. The expert described a highly unpredictable condition and a real danger of renewed offending, especially if treatment stops.