Falstad was a pawn in the political postwar trials against the Nazis. From 1945 until 1949, the prisoners at Falstad included former members of the Norwegian Nazi party and front fighters as well as other prisoners suspected of having supported the Nazis or who had been convicted of this.
After the German capitulation in May 1945, SS Strafgefangenenlager Falstad overnight turned into a detention camp and later a forced labour camp for people convicted of treason. Norwegian police and prison authorities took over the management of the camp in the summer of 1945. In November 1945 the institution was renamed Innherad Forced Labour Camp and people convicted of treason were placed here.
The authorities wanted the prisoners to contribute both to the income of the camp and to rebuild the nation. It was considered important to use forced labour as a means of both punishment and employment. Tasks inside the camp area were craft production, chopping wood, cleaning, office work and kitchen duties. Outside the camp, construction work and carpentry were the main activities.
From May 1945 until the camp was dissolved in March 1949, more than 3,000 people either served out their sentence in the camp or served part of it there. Some prisoners were remanded in custody, whereas others were convicted of treason. Only a minority of the prisoners were women.