The German Alpine Club, DAV, has ten rules for indoor climbing. The second is Partnercheck vor jedem Start!, a partner check before every climb. The two partners check each other mit Augen und Händen, with eyes and hands: the knot and tie-in point, the belay carabiner, the belay device, the harness and its buckles, and the knot at the end of the rope. Since 2015 the DAV and its partner KLEVER have published accident statistics for climbing gyms every year. The report for 2025 covered 341 reported accidents in Germany and Austria. In all five ground falls with automatic belay devices, the climber had not clipped in. Julius Kerscher of DAV safety research: Viele schwere Unfälle beim Klettern wären vermeidbar. Many serious climbing accidents could be avoided. The report concludes: Der Partnercheck vor dem Losklettern ist eine der wichtigsten Sicherheitsmaßnahmen. The partner check before climbing is one of the most important safety measures.