Sonderabteilung Lola was an independent group under the German Sicherheitsdienst in Trondheim, KDS Drontheim Referat IV. The Sonderabteilung consisted of around 50-60 Norwegian informants who worked for Henry Rinnan, many of whom were former Waffen-SS frontline soldiers. The group was not known to the vast majority of Norwegians, including the members of the Nasjonal Samling party, until after the war.