Police in Gelsenkirchen deployed a service dog during a raid at a fenced company site, after multiple youths forced entry by climbing a fence. A witness reported the group on Küppersbusch Street in Gelsenkirchen-Feldmark on Friday, 13 November 2026, at around 21:10. Officers surrounded the former Küppers company grounds and searched the premises using the service dog. In a derelict building, the dog located five suspected offenders in a room on one of the upper floors. The dog’s deployment was clearly communicated by the handler, but one of the youths made a defensive striking motion toward the dog. The service dog then bit the 14-year-old in the arm. The youth was left with a minor injury and was taken to hospital. The remaining youths were also handed to their legal guardians. All five suspected offenders, aged 14 and 15, live in Gelsenkirchen. Police say criminal complaints are expected. The investigation is ongoing under police supervision.