An elder from the Groningen Congregation, Klaas de Vries, was subjected to cruel, merciless interrogation by the Nazi Gestapo, placed in solitary confinement for 12 days with only bread and water, and then questioned again.
Ta pandi 12 päevaks üksikkongi vaid vee ja leiva peale ning pärast seda küsitleti teda uuesti.