Method and device for inspecting a string of packs. Each of the packs contains drugs, and consumer data such as patient data are provided on the packs. Specific characteristics of the drugs to be scanned are fed into a central processing unit. These characteristics are compared with the drugs present in the actual pack. According to the invention, a graphic image of the pack, the drugs and the patient data is produced and stored. To optimize scanning of a group of drugs spreading is proposed by means of a resilient cam which rotates in a plane essentially parallel with the plane of the carrier. Such cam is mounted in a bush and can move resiliently in said bush at right angles to the plane of the carrier and said bush is caused to rotate. It is possible to provide a number of such constructions adjacent to one another.