OLC Memos Define Official Waterboarding Procedure
A
recently declassified four memos has shed light on the recently banned practice of waterboarding. For the first time, the memos publicly describe the officially sanctioned waterboarding interrogation procedure:
Jay S. Bybee, August 1 2002, p.3-4:
In this procedure, the individual is bound securely to an inclined bench, which is approximately four feet by seven feet. The individual's feet are generally elevated.
A cloth is placed over the forehead and eyes. Water is then applied to the cloth in a controlled manner. As this is done, the cloth is lowered until it covers both the nose and mouth. Once the cloth is saturated and completely covers the mouth and nose, air flow is slightly restricted for 20 to 40 seconds due to the presence of the cloth. This causes an increase in carbon dioxide level in the individual's blood. This increase in the carbon dioxide level stimulates increased effort to breathe. This effort plus the cloth produces the
perception of "suffocation and incipient panic," i.e., the perception of drowning.
The individual does not breathe any water into his lungs. During those 20 to 40 seconds, water is continuously applied from a height of twelve to twenty-four inches. After this period, the cloth is lifted, and the individual is allowed to breathe unimpeded for three or four full breaths.
the sensation of drowning is immediately relieved by the removal of the cloth. The procedure may then be repeated. The water is usually applied from a canteen cup or small watering can with a spout. You have orally informed us that
this procedure triggers an automatic physiological sensation of drowning that the individual cannot control even though he may be aware that he is not in fact drowning. You have also orally informed us that it is likely that this procedure would not last more than twenty minutes in any one application.
Steven G Bradbury, May 10 2005, p.13:
13. The "waterboard". In this technique, the detainee is lying on a gurney that is inclined at an angle of 10 to 15 degrees to the horizontal, with the detainee on his back and his head toward the lower end of the gurney.
A cloth is placed over the detainee's face and cold water is poured on the cloth from a height of approximately 6 to 8 inches. The wet cloth creates a barrier through which it is difficult - or in some cases not possible - to breathe. A single "application" of water
may not last for more than 40 seconds, with the duration of an "application" measured from the moment when water - of whatever quantity - is first poured onto the cloth until the moment the cloth is removed from the subject's face. See August 19 Letter at 1. When the time limit is reached,
the pouring of water is immediately discontinued and the cloth is removed. We understand that if the detainee makes an effort to defeat the technique (e.g. by twisting his head to the side and breathing out of the corner of his mouth), the interrogator may cup his hands around the detainee's nose and mouth to dam the runoff, in which case it would not be possible for a detainee to breathe during the application of the water. In addition, you have informed us that the technique may be applied in a manner to defeat efforts by the detainee to hold his breath by, for example, beginning an application of water as the detainee is exhaling. Either in the normal application, or where countermeasures are used, we understand that water may enter - and may accumulate in - the detainee's mouth and nasal cavity, preventing him from breathing. Either in the normal application, or where countermeasures are used, we understand that water may enter — and may accumulate in — the detainee’s mouth and nasal cavity, preventing him from breathing. In addition, you have indicated that the detainee as a countermeasure may swallow water, possibly in significant quantities.
For that reason; based on advice of medical personnel, the C.I.A. requires that saline solution be used instead of plain water to reduce the possibility of hyponatremia (i.e., reduced concentration of sodium in the blood) if the detainee drinks the water.
Note that says
"the individual does not breathe any water into his lungs." This is true. The individual breathes water into his mouth, nose, sinuses, larynx, pharynx, and trachea but not the lungs. The lungs are elevated by the inclination of the board to keep them "above the waterline" to prevent the water from actually drowning the individual.