14-San Pedro Prison, Bolivia
This is a different prison. It is not watched by the police but by civilian mercenaries.
In it, prisoners determine the orders, and usually resolve all disagreements by killing those responsible.
The prison is divided into two parts. They being: The elite and the rest.
As you may have guessed, the elite are home to the most privileged prisoners. They have cable TV, bathroom and kitchen available.
Furthermore, it is the elite who determine the price at which a detainee can move from one cell to another more comfortable.