Restrain the interrogation subject on a board. Incline the board about 15-20 degrees so that the feet are above the head. Optionally, put a damp cloth over the face to keep the water clinging to the face (Khmer Rouge technique), or put plastic wrap over the mouth but not the eyes or nose to prevent water from escaping the throat and sinuses (CIA technique). Pour water onto the inclined face so that the water runs into the upturned mouth and nose. The water stays in the head, filling the throat, mouth, and sinuses with water. The lungs don't fill up with water so your prisoner doesn't asphyxiate, but they *do* feel their entire upper respiratory system from sinuses to trachea filled with water, "simulating drowning". You're drowning your subject from the inside, filling their head and neck. The lungs stay out of the water, keeping oxygen in the blood and prolonging the glubbing. "His sufferings must be that of a man who is drowning, but cannot drown." Key points:
- Keep the chest elevated above the head and neck to keep the lungs "above the waterline".
- Incline the head, both to keep the throat open and to present the nostrils for easier filling.
- Force the mouth open so that water can be poured into both the nose and mouth.