Apparently some genius decided that a detection system consisting of a taut wire was a more cost efficent way to keep convicts in the prison... as opposed to actualy manning guard towers.
Anyone with any experience in a prison system knows that guards keep people from escaping, not "systems". Systems help guards control a prison. Without guards, a system is worth absolutely nothing. Well not nothing, someone has to spend an extra 15 minutes planning an escape to account for it.
I hope the politicians who decided that saving a few bucks on proper guards are held accountable by the voters for any lives that are lost due to this escape.