Samir Naji al Hasan Moqbel is a Yemeni accused of serving in Osama bin Laden's security detail and has been imprisoned for nearly 13 years without charge in Guantanamo Bay. The following first-person testimony, recorded during his most recent meeting with lawyers from the international human rights organisation Reprieve, has just been released by prison censors.

I've heard that the Senate report on CIA torture is 6,000 pages long. My story, though, takes place elsewhere: in Guantanamo, away from the CIA program that the report covers. The 6,000 pages of the Senate report are just the start of what Americans have to accept happened in their name.

It starts and ends in the silence of a tiny, freezing cold cell, alone.

That’s when you hold yourself in a ball, and fight to ignore the confusion of what has just happened to you, and the fear of what might be coming next. Or the fear that comes when you realize that no one is coming to help; that the life, family and friends you knew are all far, far away. The cell door opens. The next session, seemingly the 100th in a row. I think my first period of interrogation lasted three full months. Two teams of interrogators running shifts, day and night.

Each session begins with shouting, to wake me up. Then they hit me on the face and the back. I am so desperate for sleep, my head is swimming. There are photographs of faces stuck all around the walls of this room. They demand that I identify the individuals, but I can barely focus to see if I might know them. The shouting and the insults get louder, and then they nod to a man in the corner. He injects me twice in the arm with some unknown substance. It's the last thing I know.

The freezing cold cell. The cell door opens. This time the guards enter, making awful honking noises, like wild animals.

I tried to refuse to eat the little food they bring me, in protest at all this. The interrogator laughs at me, but then turns angry; he swears

loudly, and pours an army meal pack over my head. They tell the man in the corner to start feeding me intravenously. He inserts the tube in two different places on my arm and makes it bleed.

The freezing cold cell. The cell door opens. This time the guards push me on the floor and take turns trampling over my back.

I tell the interrogators that I can't face not eating any more. They throw food on the floor of the room and tell me to eat like a pig. They won't let me go to the restroom. They watch as it gets more painful, and laugh as they get the translator to describe how they will rape me if I pee in my pants.

The freezing cold cell. The cell door opens. They make me stand and salute the American flag.

I’m in a sort of cinema room, where I have to watch videos of other prisoners being abused. Then they tell me that I have to dance for them, and run in circles whilst they pull on my chains. Every time I try and refuse, they touch me in my most private areas.