The Swiss Federal Railways has been using drones in the fight against graffiti sprayers since the beginning of July, having received authorisation from the Federal Office of Civil Aviation to do so. +Get the most important news from Switzerland in your inbox The company confirmed a report in the NZZ am Sonntag newspaper, according to which the drones fly up to 30 metres high and are only used in the track area, where unauthorised access is prohibited. The target is people who trespass on railroad premises at night, namely graffiti artists. + A special carriage where schoolchildren are taught vandalism prevention The Federal Office of Civil Aviation (FOCA) has issued a permit to the Video and Graffiti Unit of the Federal Railways Transport Police for this purpose. This authorises the operation of the Beehive 1 drone system from Sunflower Labs. The drones are automated, but are monitored by humans. The federal railways is not disclosing how many such drone missions have been flown ...