Strachwitz and his men were questioned by a French captain and accused of being spies and saboteurs. They were taken to the prison at Châlons the next day where they were separated. Strachwitz, as an officer, was placed in solitary confinement. Early in the morning they were all lined up for the firing squad, but a French captain arrived just in time to stop the execution. Strachwitz and his men were then tried before a French military court on 14 October 1914. The court sentenced them all to five years of forced labour on the prison island of Cayenne. At the same time they were deprived of rank, thus losing the status of prisoners of war. Strachwitz was then taken to the prisons at Lyon and Montpellier, and then to the Île de Ré, from where the prison ship would depart for Cayenne. It is unclear what circumstances prevented his departure, but he was imprisoned at Riom and Avignon instead. At Avignon prison he was physically and mentally tortured by both the guards and the other prisoners. This included being chained naked to a wall, deprivation of food and severe beatings. After one year at Avignon he was given a German uniform and taken to the prisoner of war camp at Fort Barraux.