For a facial slap, the interrogator was supposed to hit with fingers slightly spread, at equal length between the tip of the chin and the bottom of the corresponding earlobe. Dousing a naked detainee with water was to last 20 minutes if the water’s temperature measured 5 °C, 40 minutes at 10 °C, and up to 60 minutes at 15 °C. Sleep deprivation could not exceed 180 hours, but could start over again after eight hours rest.