Out of the total number of the persons designated for the execution, fifteen men were led in each case to the brink of the mass grave where they had to kneel down, their faces turned towards the grave. When the men were ready for the execution one of my leaders who was in charge of this execution squad gave the order to shoot. Since they were kneeling on the brink of the mass grave, the victims fell, as a rule, at once into the mass grave.

Quoted in "The Eichmann Kommandos" - Page 157 - by Michael Angelo Musmanno