Key legal question
Whether the site manager's omissions were adequately causal for the complainant's serious injury and danger under Arts. 125 and 229 StGB.
Extracted holding
The manager did breach safety duties, but the injury was caused by the complainant's unforeseeable, agreement-breaking conduct; adequate causation was absent.
Extracted reasoning
A roof inspection and load calculation would not have changed the result, and the manager could not foresee that the complainant would move the excavator next to the opening and move gravel through it contrary to the agreed method.