incredible images show handcuffed members from the notorious barrio 18 gang wait to be admitted on their arrival to san francisco gotera in an effort to curb gang violence .
in a potentially incendiary move , barrio 18 members at the jail will be classified not by their gang affiliation , but by how dangerous they are .
so far this year , gang members have been blamed for killing 20 police officers , two soldiers , six prison guards and a prosecutor .