Key legal question
Whether preventive detention was lawful despite the defendant's claim that no concrete flight risk existed.
Extracted holding
The court held that the combination of weak ties to Switzerland, no employment, social assistance, prior travel to Africa, and the pending criminal proceedings established a concrete risk of flight.
Extracted reasoning
Flight risk is assessed on all circumstances, not on the gravity of the offense alone. The cantonal court could rely on the appellant's family situation, financial dependence, ambiguous attitude toward returning to Africa, and the possible administrative consequences of prosecution.