Forster personally encouraged such violence; in a speech at the Prusinski Hotel in Wejherowo he incited ethnic Germans to attack Poles by saying "We have to eliminate the lice-ridden Poles, starting with those in the cradle. In your hands I give the fate of the Poles; you can do with them what you want". The crowd gathered before the hotel chanted "Kill the Polish dogs!" and "Death to the Poles". The Selbstschutz later participated in the massacres as Piaśnica. In 1946 a Polish National Tribunal in Gdańsk held Forster responsible for the murders at Piasnica.