Misscarriage of justice in NZ

So it seems that the NZ Army built a faulty bridge on crown land, providing access to a farmers property. It collapsed 8 years later, killing Kenneth Richards. The land owner was subsequently prosecuted for failing to maintain the bridge. An Army internal inquiry found that the bridge collapse was due solely to their shoddy design and construction. The Army did not reveal the results of that inquiry and tried to supress knowledge of it's existance. Hilarity ensues.