In prison, Lenz provided his captors with a signed confession. This, when combined with the testimony of the "Peleus" survivors and the log of "U-852" (which Eck had failed to destroy), provided conclusive testimony. Following the war's conclusion, all the above named crew members were placed on trial at the Hamburg war trials (an extension of the Nuremberg trials for less prominent war criminals) for the deaths of the steamer's crew. The judge was Melford Stevenson. After a four-day hearing, at which crew members, survivors and experts were called, all five men were found guilty.