I recently saw an interesting movie on comcast on demand, possibly called, "Elite Unit" about a law enforcement group known as BOPE in Brazil which is like a self autonomous elite SWAT/SOF L.E. unit. They have a long operational leash to put it mildly.

Its not at the same level as the classic film, Battle of Algiers but its an interesting film. I researched it on the net and the director stated that while filming a torture scene that an actual BOPE member approached him and told him that the technique was all wrong and showed him the proper way to execute it without leaving marks on the victim. The director felt it was their way of showing they didn't care about the film being made. Its worth watching if you can find it.