Question juridique clé
Whether the control examination condition requiring a hair sample was lawful and proportionate.
Solution extraite
Yes. Hair analysis is the most suitable method to verify abstinence over a longer period; blood and urine tests are only snapshot controls and do not provide equivalent proof.
Motifs extraits
The court held that hair analysis can distinguish abstinence from repeated use and reliably assess consumption patterns over months. Possible external contamination does not negate suitability, and the measure remained necessary and proportionate despite the lighter interference with personal freedom.