The Lack Of An All-encompassing Perspective

   It wasn't that he was particularly narrow minded, it was more that he was unfortunately cursed with tunnel vision.

   Not real, medically diagnosed tunnel vision of course, but the metaphorical tunnel vision that prevents otherwise sane, rational & fairly intelligent people from seeing the flaws in their conclusions, corrupted as those conclusions were due to a lack of regard for any and all evidence that would contradict them.

   In other words, he couldn't see the forest for the trees because he solely focused on the meadow.

   Which made him a very poor Chief Investigating Officer.