We didn't find anything at lawbrary.ch/gesetz/cc/741_21/OSR/v2025.03/fr/art70/ordonnance-sur-la-signalisation-routiere-osr/art-70-aspect-et-utilisation-des-signaux-lumineux/image/image224.png, so we tried to match legal code "OSR" for you.
Persons and property may only be searched without consent if it is suspected that forensic evidence or items or assets that must be seized may be found.