Prosecutors have presented to a court formal allegations that accuse 10 prison guards with torture, murder and abuse of authority.
This involves events at the La Reforma maximum security facility from May 11 to 15, 2011. That was the period after police frustrated an attempted jailbreak.
During this time one of the inmates, Johel Araya, a leader of the breakout attempt, suffered fatal injuries and was found dead in his cell.
The prosecutors expect that a preliminary hearing will be set up for the 10 accused, said the Poder Judicial.
They also are investigating the role of other persons outside the prison in the breakout attempt.