 The most common victims were children, the elderly, mothers with young children and any others considered unfit to work.During his trial, Kremer described how a gassing was conducted and what his role as doctor was.The gassings were conducted in cabins located on the outskirts of the camp; the victims were transported by railway, and after they arrived, prisoners "were first driven to barracks where the victims undressed and then went naked to the gas chambers.