The block contained special torture chambers in which various punishments were applied to prisoners. Some could include being locked in a dark chamber for several days or being forced to stand in one of four standing cells.[2] Punishment in these special compartments (one square metre each, with a hole 5x5 cm for breathing), consisted of confining four prisoners, who were forced by the lack of space to remain standing all night for up to twenty nights, while still being forced to work during the day.[3]