The Ciudad Barrios prison is a prison in Ciudad Barrios, San Miguel, El Salvador.
[1] Between September 2004 and mid-2015, it exclusively housed members of the MS-13 gang.
[2][3][4][5] During this time, El Salvador had a policy of segregating gang members in its prisons; this policy has been reversed.
[2][3][4][5] The Ciudad Barrios prison has been militarized, with both soldiers and police officers serving as prison guards.
[8] Guards have relatively little control over the prison given a prisoner-to-guard ratio of 50 to one.